20160731 frey50 Encyclopedia of the animal world Volume 16 Platypus puzzle - Rhea J & H International Corporation - Hong Kong Mandarin Publishers Ltd. 1972 - pages 1441 - 1536 Volume Set - Encyclopedia of the Animal World Platypus puzzle - Rhea Volume 16 . Subjects--Topical Terms: Animals Dewey Class. No.: j590 Enc 25