Pitman, I. (1913). Key to Course in Isaac Pitman shorthand (Centenary ed. .). I. Pitman & Sons.
Chicago Style (17. basım) AtıfPitman, Isaac. Key to Course in Isaac Pitman Shorthand. Centenary ed. . New York: I. Pitman & Sons, 1913.
MLA (8th ed.) AtıfPitman, Isaac. Key to Course in Isaac Pitman Shorthand. Centenary ed. . I. Pitman & Sons, 1913.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..