Dyfyniad APA

Diamond, J. (2005). Collapse: How societies choose to fail or succeed. Viking.

Dyfyniad Arddull Chicago

Diamond, Jared. Collapse: How Societies Choose to Fail or Succeed. New York: Viking, 2005.

Dyfyniad MLA

Diamond, Jared. Collapse: How Societies Choose to Fail or Succeed. Viking, 2005.

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