Eldridge, E. H., Stickney, B. G., Stickney, R., & Ramsey, A. F. C. O. (1939). Shorthand reading and dictation exercises (Gregg ed.). American Book Co.

Eldridge, Edward Henry, Blanche G. Stickney, Rufus Stickney, and Astrid Florence Cornelia Okerlund Ramsey. Shorthand Reading and Dictation Exercises. Gregg ed. New York, Cincinnati: American Book Co, 1939.

Eldridge, Edward Henry, et al. Shorthand Reading and Dictation Exercises. Gregg ed. American Book Co, 1939.