APA (7th ed.) Citation

Gabriel, P. L. (1959). The executive. Citadel Press.

Chicago Style (17th ed.) Citation

Gabriel, Philip Louis. The Executive. New York: Citadel Press, 1959.

MLA (9th ed.) Citation

Gabriel, Philip Louis. The Executive. Citadel Press, 1959.

Warning: These citations may not always be 100% accurate.