APA aipamena

MacBean, J. C. (1973). Astronomy: Examining your environment. Holt, Rinehart and Winston of Canada.

Chicago Style aipamena

MacBean, John C. Astronomy: Examining Your Environment. Toronto: Holt, Rinehart and Winston of Canada, 1973.

MLA aipamena

MacBean, John C. Astronomy: Examining Your Environment. Holt, Rinehart and Winston of Canada, 1973.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.