APA (7th ed.) Citation

Opitz, C. (1915). Interchangeable high-tension switches. Electrical World, 66, 124.

Chicago Style (17th ed.) Citation

Opitz, C. "Interchangeable High-tension Switches." Electrical World 66 (1915): 124.

MLA (9th ed.) Citation

Opitz, C. "Interchangeable High-tension Switches." Electrical World, vol. 66, 1915, p. 124.

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