APA (7e ed.) Bronvermelding

Herrin, A. N. (1982). The Cagayan Valley Rural Electrification Project: An impact assessment. Philippine Center for Economic Development.

Chicago (17e ed.) Bronvermelding

Herrin, Alejandro N. The Cagayan Valley Rural Electrification Project: An Impact Assessment. Quezon City: Philippine Center for Economic Development, 1982.

MLA (9e ed.) Bronvermelding

Herrin, Alejandro N. The Cagayan Valley Rural Electrification Project: An Impact Assessment. Philippine Center for Economic Development, 1982.