Great Britain Board of Trade. Report of the Standing Committee Respecting Pencils and Pencil Strips. Cmd. 4278. London, 1933.

Great Britain Forest Products Research Laboratory. African Pencil Cedar: Studies of the Properties of Juniperus procera (Hochst.) with Particular Reference to the Adaptation of the Timber to the Requirements of the Pencil Trade. London, 1938.

Great Soviet Encyclopedia. Translation of the 3rd ed. NY, 1976.

Greenland, Maureen. Visit to the Berol Pencil Factory, Tottenham, Wednesday, May 19th, 1982 // Journal of the Writing Equipment Society. № 4. 1982. P. 7.

Guptill, Arthur L. Sketching and Rendering in Pencil. NY, 1922.

Haldane, J. W. C. Life as an Engineer: Its Lights, Shades and Prospects. London, 1905.

Hall, Donald, editor. The Oxford Book of American Literary Anecdotes. NY, 1981.

Hall, William L., and Hu Maxwell. Uses of Commercial Woods of the United States: I. Cedars, Cypresses, and Sequoias // U. S. Department of Agriculture, Forest Service Bulletin 95. 1911.

Halse, Albert O. Architectural Rendering: The Techniques of Contemporary Presentation. NY, 1960.

Hambly, Maya. Drawing Instruments: Their History, Purpose and Use for Architectural Drawings. [Exhibition catalogue.] London, 1982.

Hambly, Maya. Drawing Instruments: 1580–1980. London, 1988.

Hammer, Armand. The Quest of the Romanoff Treasure. NY, 1936.

Hammer, Armand, with Neil Lyndon. Hammer. NY, 1987.

Hammond, John Winthrop. Charles Proteus Steinmetz: A Biography. NY, 1924.

Harding, Walter. The Days of Henry Thoreau: A Biography. NY, 1982.

Harding, Walter. Thoreau’s Library. Charlottesville, Va., 1957.

Harding, Walter, editor. A Catalog of the Thoreau Society Archives in the Concord Free Public Library. Thoreau Society Booklet 29. Geneseo, N.Y., 1978.

Hardtmuth, L. & C. Retail Price List: L. & C. Hardtmuth’s Koh-i-Noor Pencils. NY, [ca. 1919].

Hart, Ivor B. The World of Leonardo da Vinci: Man of Science, Engineer and Dreamer of Flight. London, 1961.

Hartmann, Henry. Blushing on Lacquered Paint Parts Overcome by Gas Fired Dehumidifier // Heating, Piping and Air Conditioning. June 1939. P. 356.

Hauton, Paul S. Splitting Pennies // Factory and Industrial Management. № 76. July 1928. P. 43–47.

Hayward, Phillips A. Wood: Lumber and Timbers. NY, 1930.

Helmhacker, R. Graphite in Siberia // Engineering and Mining Journal. Dec. 25, 1897. P. 756.

Helphenstine, R. K., Jr. What Will We Do for Pencils? // American Forests. № 32. Nov. 1926. P. 654.

Hemingway, Ernest. A Moveable Feast. NY, 1964.

Hendrick, George, editor. Remembrances of Concord and the Thoreaus: Letters of Horace Hosmer to Dr. S. A. Jones. Urbana, Ill., 1977.

Hero of Alexandria. The Pneumatics. Translated for and edited by Bennet Woodcroft. London, 1851.

Hill, Donald. A History of Engineering in Classical and Medieval Times. La Salle, Ill., 1984.

Hill, Henry. The Quill Pen // The Year Book of the London School of Printing & Kindred Trades. 1924–1925. P. 73–78.

Hindle, Brooke. Emulation and Invention. NY, 1981.

Historische Bürowelt. L’Histoire d’un Crayon. № 11. Oct. 1985. P. 11–13.