APA (7th ed.) Citation

United States. Bureau of Foreign and Domestic Commerce. (1925). Recent radio progress in foreign countries. GPO.

Chicago Style (17th ed.) Citation

United States. Bureau of Foreign and Domestic Commerce. Recent Radio Progress in Foreign Countries. [Washington]: GPO, 1925.

MLA (9th ed.) Citation

United States. Bureau of Foreign and Domestic Commerce. Recent Radio Progress in Foreign Countries. GPO, 1925.

Warning: These citations may not always be 100% accurate.