Defense Mechanism

Overview:

• Title: Defense Mechanism
• Author: Katherine MacLean
• Year: 1949
• Type: Short Fiction

Editions/Publications:

• 1949. Astounding Science Fiction, October 1949 (1949, John W. Campbell, Jr. Street & Smith Publications, Inc., $0.25, 164 pages, digest, Magazine)
• 1950. Big Book of Science Fiction (1950, Groff Conklin Crown, $3.50, 545 pages, Hardcover, Anthology)
• 1954. Beyond the Barriers of Space and Time (1954, Judith Merril Random House, Catalog ID: #LCC# 5410743, $2.95, 294 pages, Hardcover, Anthology)
• 1962. The Diploids (1962, Katherine MacLean, Collection)
• 1962. The Diploids and Other Flights of Fancy (1962, Katherine MacLean Avon, Catalog ID: #G1143, $0.50, 192 pages, Paperback, Collection)
• 1978. The Classic Book of Science Fiction (1978, Groff Conklin Bonanza/Crown, Hardcover, Anthology)
• 1981. First Voyages (1981, Damon Knight, Martin H. Greenberg, Joseph D. Olander Avon, ISBN-10: 0380775867, $2.95, Paperback, Anthology)
• 1984. Isaac Asimov Presents the Great SF Stories: 11 (1949) (1984, Isaac Asimov, Martin H. Greenberg DAW, ISBN-10: 0879979186, $3.50, 317 pages, Paperback, Anthology)
• 1988. Isaac Asimov Presents the Golden Years of Science Fiction: Sixth Series (1988, Isaac Asimov, Martin H. Greenberg Crown/Bonanza, ISBN-10: 0517657546, $8.95, 624 pages, Hardcover, Anthology)

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