Citazione Stile APA (7a Edizione)

Willrich, M. (1976). Administration of energy shortages: Natural gas and petroleum. Ballinger Pub.

Citazione stile Chigago Style (17a edizione)

Willrich, Mason. Administration of Energy Shortages: Natural Gas and Petroleum. Cambridge, Mass: Ballinger Pub, 1976.

Citatione MLA (9a ed.)

Willrich, Mason. Administration of Energy Shortages: Natural Gas and Petroleum. Ballinger Pub, 1976.