Gaya APA
Hatcher, R, A. (2001).
The Essentials of Contraceptive Technology: A Handbook for Clinic Staff .
USA:
Population Information Program.
Gaya MLA
Hatcher, Roberth, A..
"The Essentials of Contraceptive Technology: A Handbook for Clinic Staff".
USA:
Population Information Program,
2001.
Buku Text.