Possible Effects on the Atmosphere of Large-Scale Helium Extraction from the Atmosphere

MLA

Library of Congress. Possible Effects on the Atmosphere of Large-Scale Helium Extraction from the Atmosphere. [Washington, D.C.] [publisher not identified] 1979-1980

APA

Library of Congress. (1979). Possible Effects on the Atmosphere of Large-Scale Helium Extraction from the Atmosphere. [Washington, D.C.] [publisher not identified].

Chicago

Library of Congress. Possible Effects on the Atmosphere of Large-Scale Helium Extraction from the Atmosphere. [Washington, D.C.] [publisher not identified] 1979-1980