Radio markets of the world, 1930
By: by Lawrence D. Batson, Electrical equipment division.
Series: United States. Bureau of foreign and domestic commerce (Dept. of commerce) Trade promotion series,; no. 109
Publisher: U.S. Govt. print. off.
Published: 1930
Place of publication: Washington
Language: eng
Number of pages: 110
Subjects: Radio.
Notes: At head of title: U.S. Department of commerce. R. P. Lamont, secretary. Bureau of foreign and domestic commerce. William L. Cooper, director.