Pet Rocks Mystery

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Overview:

Title: Pet Rocks Mystery
Author: Jack Williamson
Year: 2011
Type: Short Fiction

Editions/Publications:

Unknown. At the Human Limit (Unknown, Jack Williamson, Haffner Press, ISBN-10: 9781893887527, $150.00, xxi+590 pages, Hardcover, Collection)
2011 . At the Human Limit (2011, Jack Williamson, Haffner Press, ISBN-10: 9781893887510, $40.00, xxi+590 pages, Hardcover, Collection)