Gaya APA

Varney, H. (1997). Varney's Midwifery Third Edition (Fotocopian) (Cet.1.). Amerika: John Bartlett.

Gaya MLA

Varney, Helen. "Varney's Midwifery Third Edition (Fotocopian)". Cet.1. Amerika: John Bartlett, 1997. Text.