APA aipamena

Hay, M., & Williamson, P. (1991). Straegy handbook. Basil Blackwell.

Chicago Style aipamena

Hay, Michael, and Peter Williamson. Straegy Handbook. UKI: Basil Blackwell, 1991.

MLA aipamena

Hay, Michael, and Peter Williamson. Straegy Handbook. Basil Blackwell, 1991.