Gregg, J. R. (1957). Applied secretarial practice. Gregg Pub. Division.
Citación estilo ChicagoGregg, John Robert. Applied Secretarial Practice. New York: Gregg Pub. Division, 1957.
Cita MLAGregg, John Robert. Applied Secretarial Practice. Gregg Pub. Division, 1957.
Warning: These citations may not always be 100% accurate.