APA

Simmons H. H., Avery A. H., . (19). Electrical Engineering. London: Cassell & Co.

Chicago

Simmons Harold H, Avery Alfred H, . 19. Electrical Engineering. London: Cassell & Co.

Harvard

Simmons H. H., Avery A. H., . (19). Electrical Engineering. London: Cassell & Co.

MLA

Simmons Harold H, Avery Alfred H, . Electrical Engineering. London: Cassell & Co. 19.