Cita APA (7th ed.)

Beatty, R. W. (1987). The productivity sourcebook. Human Resource Development Press.

Cita Chicago (17th ed.)

Beatty, Richard W. The Productivity Sourcebook. Amherst, Mass: Human Resource Development Press, 1987.

Cita MLA (9th ed.)

Beatty, Richard W. The Productivity Sourcebook. Human Resource Development Press, 1987.