APA (7th ed.) Citation

Mordin, R. (1919). The Strowger automatic telephone exchange / by R. Mordin. Spon.

Chicago Style (17th ed.) Citation

Mordin, R. The Strowger Automatic Telephone Exchange / by R. Mordin. Spon, 1919.

MLA (9th ed.) Citation

Mordin, R. The Strowger Automatic Telephone Exchange / by R. Mordin. Spon, 1919.

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