A collection of short stories and articles by Robert A. Heinlein, Robert Silverberg, Jerry Pournelle, and others addresses the issue of interstellar colonization
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Book Description Ace, 1991. Mass Market Paperback. Book Condition: New. Bookseller Inventory # P110441105912
Book Description Ace. MASS MARKET PAPERBACK. Book Condition: New. 0441105912 New Condition. Bookseller Inventory # NEW7.1094255