Cita APA (7a ed.)

Gregerman, I. B. (1981). Knowledge worker productivity. AMA Management Briefing.

Cita Chicago Style (17a ed.)

Gregerman, Ira B. Knowledge Worker Productivity. Nueva York: AMA Management Briefing, 1981.

Cita MLA (9a ed.)

Gregerman, Ira B. Knowledge Worker Productivity. AMA Management Briefing, 1981.