Cita APA

Bittel, L. R., & Bittel, L. R. (1972). The nine master keys of management. New York, New York: McGraw-Hill.

Citación estilo Chicago

Bittel, Lester R., y Lester R. Bittel. The Nine Master Keys of Management. New York, New York: McGraw-Hill, 1972.

Cita MLA

Bittel, Lester R., y Lester R. Bittel. The Nine Master Keys of Management. New York, New York: McGraw-Hill, 1972.