Dyfyniad APA

Hafez, E., & Van Os W.A. A., e. (1980). Biodegradables and delivery systems for Contraception. G. K. Hall Medical.

Dyfyniad Arddull Chicago

Hafez, E.S.E, and ed Van Os W.A. A. Biodegradables and Delivery Systems for Contraception. G. K. Hall Medical, 1980.

Dyfyniad MLA

Hafez, E.S.E, and ed Van Os W.A. A. Biodegradables and Delivery Systems for Contraception. G. K. Hall Medical, 1980.

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