APA aipamena

Britton, J., & Lewis, S. (1992). Pet birds and lung cancer.

Chicago Style aipamena

Britton, J., and S. Lewis. Pet Birds and Lung Cancer. 1992.

MLA aipamena

Britton, J., and S. Lewis. Pet Birds and Lung Cancer. 1992.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.