Dyfyniad APA

Edison Electric Institute. Rural Sales Committee & National Electric Light Association. Rural Sales Bureau. Rural electrification exchange. Edison Electric Institute.

Dyfyniad Arddull Chicago

Edison Electric Institute. Rural Sales Committee and National Electric Light Association. Rural Sales Bureau. Rural Electrification Exchange. New York: Edison Electric Institute.

Dyfyniad MLA

Edison Electric Institute. Rural Sales Committee and National Electric Light Association. Rural Sales Bureau. Rural Electrification Exchange. Edison Electric Institute.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.