For Your Information: The Orbits of the Comets

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Overview:

Title: For Your Information: The Orbits of the Comets
Author: Willy Ley
Year: 1967
Type: Essays
Series: For Your Information

Editions/Publications:

Unknown. Galaxy Magazine, April 1967 (Unknown, Willy Ley, Galaxy Publishing Corporation, $0.60, 196 pages, digest, MAGAZINE)