APA (7th ed.) Citation

(1922). EMF electrical year book. Electrical Trade Pub. Co..

Chicago Style (17th ed.) Citation

EMF Electrical Year Book. Chicago: Electrical Trade Pub. Co., 1922.

MLA (9th ed.) Citation

EMF Electrical Year Book. Electrical Trade Pub. Co., 1922.

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