Cita APA (7th ed.)

LeBoeuf, M. (1983). The Productivity challenge: How to make it work for America and you. McGraw hill.

Cita Chicago (17th ed.)

LeBoeuf, Michael. The Productivity Challenge: How to Make It Work for America and You. New York: McGraw hill, 1983.

Cita MLA (9th ed.)

LeBoeuf, Michael. The Productivity Challenge: How to Make It Work for America and You. McGraw hill, 1983.