Dyfyniad APA

Reader's Digest Association & Chad, R. W. (2007). When nature turns nasty. Reader's Digest Association.

Dyfyniad Arddull Chicago

Reader's Digest Association and Rachel Warren Chad. When Nature Turns Nasty. London: Reader's Digest Association, 2007.

Dyfyniad MLA

Reader's Digest Association and Rachel Warren Chad. When Nature Turns Nasty. Reader's Digest Association, 2007.

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