Geology and palaeontology /
Rü̈ger, Ludwig.
Germany (Territory under Allied occupation, 1945-1955 : U.S. Zone).Office of Military Government.Field Information Agency, Technical.
[West Germany?] : Office of Military Government, Field Information Agencies Technical,
1948.
Printed under the supervision of Dieterich'sche Verlagsbuchhandlung.
Includes bibliographical references.