APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (8e ed.) Bronvermelding

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