Duckat, W. B. (1970). A guide to professional careers. J. Messner.
Citación estilo ChicagoDuckat, Walter B. A Guide to Professional Careers. New York: J. Messner, 1970.
Cita MLADuckat, Walter B. A Guide to Professional Careers. J. Messner, 1970.
Warning: These citations may not always be 100% accurate.