APA (7e ed.) Bronvermelding

Pernoll, M. L., & Benson, R. C. (1987). Current obstetric y ginecologic diagnosis y treatment 1987. Appleton y lange.

Chicago (17e ed.) Bronvermelding

Pernoll, Martin L., en Ralph C. Benson. Current Obstetric Y Ginecologic Diagnosis Y Treatment 1987. California: Appleton y lange, 1987.

MLA (9e ed.) Bronvermelding

Pernoll, Martin L., en Ralph C. Benson. Current Obstetric Y Ginecologic Diagnosis Y Treatment 1987. Appleton y lange, 1987.