APA aipamena

Williams, R. E. (1991). Teach yourself... Quatro Pro. Management Information Source, Inc.

Chicago Style aipamena

Williams, Robert E. Teach Yourself... Quatro Pro. Oregon: Management Information Source, Inc, 1991.

MLA aipamena

Williams, Robert E. Teach Yourself... Quatro Pro. Management Information Source, Inc, 1991.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.