APA (7e ed.) Bronvermelding

O'Grady, J. P., Gimovsky, M. L., & McIlhargie, C. J. (1995). Operative obstetrics. Williams & Wilkins.

Chicago (17e ed.) Bronvermelding

O'Grady, John Patrick, Martin L. Gimovsky, en Cyril J. McIlhargie. Operative Obstetrics. Baltimore: Williams & Wilkins, 1995.

MLA (9e ed.) Bronvermelding

O'Grady, John Patrick, et al. Operative Obstetrics. Williams & Wilkins, 1995.