- Paperback
- Publisher: J Allen Hynek Center for; 1st Printing edition (March 1979)
- ISBN-10: 9999181333
- ISBN-13: 978-9999181334
- Product Dimensions: 11 x 8.2 x 0.8 inches
- Shipping Weight: 13.6 ounces
- Amazon Best Sellers Rank: #8,340,387 in Books (See Top 100 in Books)
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