Dyfyniad APA

Pan American Health Organization. (1991). Global Program on Aids For The Americas. s.e.

Dyfyniad Arddull Chicago

Pan American Health Organization. Global Program on Aids For The Americas. s.l: s.e, 1991.

Dyfyniad MLA

Pan American Health Organization. Global Program on Aids For The Americas. s.e, 1991.

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