SoRelle, R. P., & Smith, H. H. (1936). Advanced typewriting exercises. Gregg Publishing Co..
Chicagoスタイル(17版)引用形式SoRelle, Rupert Pitt, , Harold Harland Smith. Advanced Typewriting Exercises. New York : Chicago [etc.]: Gregg Publishing Co., 1936.
MLA(8版)引用形式SoRelle, Rupert Pitt, , Harold Harland Smith. Advanced Typewriting Exercises. Gregg Publishing Co., 1936.
警告: この引用は必ずしも正確ではありません.