APA-viite (7. p.)
(1969). Our amazing world of Nature: Its marvels & mysteries. Reader's Digest Association.
Chicago-viite (17. p.)
Our Amazing World of Nature: Its Marvels & Mysteries. Pleasantville, N.Y.: Reader's Digest Association, 1969.
MLA-viite (9. p.)
Our Amazing World of Nature: Its Marvels & Mysteries. Reader's Digest Association, 1969.
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