Παραπομπή APA

Gellerman, S. W. (1963). Motivation and productivity. D.B Taraporevala.

Παραπομπή Chicago Style

Gellerman, Saul W. Motivation and Productivity. Bombay: D.B Taraporevala, 1963.

Παραπομπή MLA

Gellerman, Saul W. Motivation and Productivity. D.B Taraporevala, 1963.