Amazing Stories, June 1941 (cover)

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Overview:

Unknown. The Blood 'N' Thunder Guide to Collecting Pulps (Unknown, J. Allen St. John, Murania Press, ISBN-10: 9780979595509, $19.95, 225 pages, Trade Paperback, Non-fiction)
Unknown. A Golden Anniversary Bibliography of Edgar Rice Burroughs (Unknown, J. Allen St. John, Donald M. Grant, $10.00, 418 pages, Hardcover, Non-fiction)
2016 . Edgar Rice Burroughs: The Bibliography (2016, J. Allen St. John, Edgar Rice Burroughs, Inc., ISBN-10: 9781945462009, $100.00, xliii+620+16+24+[4]+16 pages, Hardcover, Non-fiction)
2016 . Edgar Rice Burroughs: The Bibliography (2016, J. Allen St. John, Edgar Rice Burroughs, Inc., ISBN-10: 9781945462016, $150.00, xliii+620+16+24+[4]+16 pages, Hardcover, Non-fiction)