APA aipamena

William A Cooper. (1971). A laboratory survey of biology. London: MacMillan.

Chicago Style aipamena

William A Cooper. A Laboratory Survey of Biology. London: MacMillan, 1971.

MLA aipamena

William A Cooper. A Laboratory Survey of Biology. London: MacMillan, 1971.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.