Reader''s Digest. (2002). Life touched with wonder: The blessings of nature. Reader's Digest Association.
Chicago-viite (17. p.)Reader''s Digest. Life Touched with Wonder: The Blessings of Nature. Pleasantville: Reader's Digest Association, 2002.
MLA-viite (9. p.)Reader''s Digest. Life Touched with Wonder: The Blessings of Nature. Reader's Digest Association, 2002.
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