APA aipamena

SIBSON, R. E. (1976). Increasing Employee Productivity. Amacom.

Chicago Style aipamena

SIBSON, Robert E. Increasing Employee Productivity. Amacom, 1976.

MLA aipamena

SIBSON, Robert E. Increasing Employee Productivity. Amacom, 1976.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.