APA (7th ed.) Citation

De Groot, H. B., & Hund, A. (1925). Radio-frequency resistance and inductance of coils used in broadcast reception. U.S. Government Printing Office.

Chicago Style (17th ed.) Citation

De Groot, H. B., and August Hund. Radio-frequency Resistance and Inductance of Coils Used in Broadcast Reception. [Washington?]: U.S. Government Printing Office, 1925.

MLA (9th ed.) Citation

De Groot, H. B., and August Hund. Radio-frequency Resistance and Inductance of Coils Used in Broadcast Reception. U.S. Government Printing Office, 1925.