APA (7th ed.) Citation

(1933). A modern method of modulation. George F. Briegel, Inc.

Chicago Style (17th ed.) Citation

A Modern Method of Modulation. New York: George F. Briegel, Inc, 1933.

MLA (9th ed.) Citation

A Modern Method of Modulation. George F. Briegel, Inc, 1933.

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