Crabbe, D., & McBride, R. (1978). The World energy book: An A-Z, atlas, and statistical source book. Nichols Pub Co.
Cita Chicago Style (17a ed.)Crabbe, David, y Richard McBride. The World Energy Book: An A-Z, Atlas, and Statistical Source Book. New York: Nichols Pub Co, 1978.
Cita MLA (9a ed.)Crabbe, David, y Richard McBride. The World Energy Book: An A-Z, Atlas, and Statistical Source Book. Nichols Pub Co, 1978.
Precaución: Estas citas no son 100% exactas.