APA ציטוט

Campbell, M. (1990). Harvard graphics made easy. Berkeley: Osborne McGraw-Hill.

Trích dẫn kiểu Chicago

Campbell, Mary. Harvard Graphics Made Easy. Berkeley: Osborne McGraw-Hill, 1990.

ציטוט MLA

Campbell, Mary. Harvard Graphics Made Easy. Berkeley: Osborne McGraw-Hill, 1990.