APA (7th ed.) Zitazioa
Cook, F. S., Morrison, P. C., Trytten, J. M., & Whale, L. J. (1959). Gregg Junior high typing. McGraw-Hill book Co. Inc..
Chicago Style (17th ed.) Zitazioa
Cook, Fred S., Phyllis C. Morrison, John M. Trytten, eta Leslie J. Whale. Gregg Junior High Typing. London: McGraw-Hill book Co. Inc., 1959.
MLA (9th ed.) Zitazioa
Cook, Fred S., et al. Gregg Junior High Typing. McGraw-Hill book Co. Inc., 1959.
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