SoRelle, R. P., & Smith, H. H. (1936). Advanced typewriting exercises. Gregg Publishing Co..
Chicago Style (17th ed.) CitationSoRelle, Rupert Pitt, and Harold Harland Smith. Advanced Typewriting Exercises. New York : Chicago [etc.]: Gregg Publishing Co., 1936.
ציטוט MLASoRelle, Rupert Pitt, and Harold Harland Smith. Advanced Typewriting Exercises. Gregg Publishing Co., 1936.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.