Cita APA

Leslie, L. A., Zoubek, C. E., Dupraw, M. J., & Gregg, J. R. (1938). Speed drills in Gregg shorthand. The Gregg Pub. Co..

Citación estilo Chicago

Leslie, Louis A., Charles E. Zoubek, Martin J. Dupraw, and John Robert Gregg. Speed Drills in Gregg Shorthand. New York : Chicago [etc.]: The Gregg Pub. Co., 1938.

Cita MLA

Leslie, Louis A., et al. Speed Drills in Gregg Shorthand. The Gregg Pub. Co., 1938.