Countdown for Surveyor

From Author Wars - https://authorwars.com/books/countdown-for-surveyor-115553.html

Overview:

Title: Countdown for Surveyor
Author: Joseph Green
Year: 1967
Type: Essays
Series: Science Fact (Analog)

Editions/Publications:

Unknown. Analog Science Fiction -> Science Fact, March 1967 (Unknown, Joseph Green, Condé Nast, $0.60, 180 pages, digest, MAGAZINE)