Dyfyniad APA

American Rose Society. (1988). The American rose. American Rose Society.

Dyfyniad Arddull Chicago

American Rose Society. The American Rose. [Shreveport, LA: American Rose Society, 1988.

Dyfyniad MLA

American Rose Society. The American Rose. American Rose Society, 1988.

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