Dyfyniad APA

Kelly, G. F. (2008). Sexuality today (9th ed.). McGraw-Hill.

Dyfyniad Arddull Chicago

Kelly, Gary F. Sexuality Today. 9th ed. Boston: McGraw-Hill, 2008.

Dyfyniad MLA

Kelly, Gary F. Sexuality Today. 9th ed. McGraw-Hill, 2008.

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