APA aipamena

Varney, h. Nurse-Midwifery. Blacwell Scientific Publications.

Chicago Style aipamena

Varney, helen. Nurse-Midwifery. Blacwell Scientific Publications.

MLA aipamena

Varney, helen. Nurse-Midwifery. Blacwell Scientific Publications.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.