APA Citation

(1917). Telephone, telegraph and wireless systems in Philadelphia: Presented to the schools of Philadelphia by the Bell Telephone Company of Pennsylvania. [Philadelphia: Philadelphia Chamber of Commerce.

Chicago Style Citation

Telephone, Telegraph and Wireless Systems in Philadelphia: Presented to the Schools of Philadelphia By the Bell Telephone Company of Pennsylvania. [Philadelphia: Philadelphia Chamber of Commerce, 1917.

MLA Citation

Telephone, Telegraph and Wireless Systems in Philadelphia: Presented to the Schools of Philadelphia By the Bell Telephone Company of Pennsylvania. [Philadelphia: Philadelphia Chamber of Commerce, 1917.

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