Gaya APA

Varney, H. (1997). Varney's Midwifery (Edisi 3). United State of America: Blackwell Science Limited for Reproductive Health Matter.

Gaya MLA

Varney, Helen. "Varney's Midwifery". Edisi 3 United State of America: Blackwell Science Limited for Reproductive Health Matter, 1997. Text.