Dyfyniad APA

Blackburm, R., Hatcher, R. A., & Rinehart, W. (1997). The essentials of contraceptive technology: A handbook for clinic staff.

Dyfyniad Arddull Chicago

Blackburm, Richard, Robert A. Hatcher, and Ward Rinehart. The Essentials of Contraceptive Technology: A Handbook for Clinic Staff. Bultimore, Population Information Program Centre for Communication Programme, 1997.

Dyfyniad MLA

Blackburm, Richard, et al. The Essentials of Contraceptive Technology: A Handbook for Clinic Staff. 1997.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.