APA aipamena

Boyle, D. C. (1995). Secrets of a successful employee recognition system. Productivity Press.

Chicago Style aipamena

Boyle, Daniel C. Secrets of a Successful Employee Recognition System. Portland, Oregon: Productivity Press, 1995.

MLA aipamena

Boyle, Daniel C. Secrets of a Successful Employee Recognition System. Productivity Press, 1995.