(1972). Marvels and mysteries of the world around us. Reader's Digest Association.
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Chicago-čujuhus (17. p.)
Marvels and Mysteries of the World Around Us. Pleasantville, New York: Reader's Digest Association, 1972.
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MLA-čujuhus (9. p.)
Marvels and Mysteries of the World Around Us. Reader's Digest Association, 1972.
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