APA Style

Bittel, L, R. (1972). The Nine master keys of management / Lester R. Bittel (1). New York: McGraw-Hill.

MLA Style

Bittel, Lester, R.. "The Nine master keys of management / Lester R. Bittel". 1 New York: McGraw-Hill, 1972. Textbook ห้องสมุดทั่วไป.