Gregg, J. R., Leslie, L. A., Rader, C., & Zoubek, C. E. (1960). Gregg shorthand. Gregg Division, McGraw-Hill.
Chicago Style (17th ed.) ZitazioaGregg, John Robert, Louis A. Leslie, Charles Rader, eta Charles E. Zoubek. Gregg Shorthand. New York: Gregg Division, McGraw-Hill, 1960.
MLA (9th ed.) ZitazioaGregg, John Robert, et al. Gregg Shorthand. Gregg Division, McGraw-Hill, 1960.
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