APA aipamena

Richardson, J. E. (1988). Marketing 88/90. The Dushkin.

Chicago Style aipamena

Richardson, John E. Marketing 88/90. The Dushkin, 1988.

MLA aipamena

Richardson, John E. Marketing 88/90. The Dushkin, 1988.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.