Radio markets of the world. 1928-1929 ...
Series: [U.S.] Bureau of foreign and domestic commerce (Dept. of commerce) Trade information bulletin -- no. 600
Publisher: U.S. Govt. print. off.
Published: 1929
Place of publication: Washington
Language: eng
Number of pages: 84
Subjects: Radio
Notes: At head of title: Department of commerce. Bureau of foreign and domestic commerce.

"Compiled by Lawrence D. Batson, Electrical equipment division."-- p. 1.