Παραπομπή σε μορφή APA (7η εκδ.)

Wilson, L. G., & Gregg, J. R. (1930). Progressive dictation: Arranged according to the units in the Anniversary edition of the Gregg shorthand manual. The Gregg Publishing Co..

Παραπομπή σε μορφή Chicago (17η εκδ.)

Wilson, Lilliam Grissom, και John Robert Gregg. Progressive Dictation: Arranged According to the Units in the Anniversary Edition of the Gregg Shorthand Manual. New York : Chicago [etc.]: The Gregg Publishing Co., 1930.

Παραπομπή σε μορφή MLA (8th εκδ.)

Wilson, Lilliam Grissom, και John Robert Gregg. Progressive Dictation: Arranged According to the Units in the Anniversary Edition of the Gregg Shorthand Manual. The Gregg Publishing Co., 1930.