Gaya APA

The essentials of contraceptive technology : a handbook for clinic staff / Robert A. Hatcher, Ward Rinehart, Richard Blackburn, Judith S. Geller. (1997). : Baltimore, Population Information Program.

Gaya MLA

The essentials of contraceptive technology : a handbook for clinic staff / Robert A. Hatcher, Ward Rinehart, Richard Blackburn, Judith S. Geller. . : Baltimore, Population Information Program, 1997. Text.