APA način citiranja

Marsh, G. N., & Channing, D. M. (1989). Audit of 26 years of obstetrics in general practice.

Čikaški stil citiranja

Marsh, G. N., i D. M. Channing. Audit of 26 Years of Obstetrics in General Practice. 1989.

MLA način citiranja

Marsh, G. N., i D. M. Channing. Audit of 26 Years of Obstetrics in General Practice. 1989.