Campbell, M. (1990). Harvard graphics made easy. Berkeley: Osborne McGraw-Hill.
Chicago-stil citatCampbell, Mary. Harvard Graphics Made Easy. Berkeley: Osborne McGraw-Hill, 1990.
MLA-referensCampbell, Mary. Harvard Graphics Made Easy. Berkeley: Osborne McGraw-Hill, 1990.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.