APA aipamena

Cosman, B., & Porter, M. R. (1960). Benign Stricture of the Bile Duct.

Chicago Style aipamena

Cosman, Bard, and Milton R. Porter. Benign Stricture of the Bile Duct. 1960.

MLA aipamena

Cosman, Bard, and Milton R. Porter. Benign Stricture of the Bile Duct. 1960.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.