Cook, F. S., Morrison, P. C., Trytten, J. M., & Whale, L. J. (1959). Gregg Junior high typing. McGraw-Hill book Co. Inc..
Lua i Stíl Chicago (17ú heag.)Cook, Fred S., Phyllis C. Morrison, John M. Trytten, agus Leslie J. Whale. Gregg Junior High Typing. London: McGraw-Hill book Co. Inc., 1959.
Lua MLA (9ú heag.)Cook, Fred S., et al. Gregg Junior High Typing. McGraw-Hill book Co. Inc., 1959.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.