Reader''s Digest. (2002). Life touched with wonder: The blessings of nature. Reader's Digest Association.
Chicago-referens (17:e uppl.)Reader''s Digest. Life Touched with Wonder: The Blessings of Nature. Pleasantville: Reader's Digest Association, 2002.
MLA-referens (9:e uppl.)Reader''s Digest. Life Touched with Wonder: The Blessings of Nature. Reader's Digest Association, 2002.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.