APA ציטוט

LeBel, P. G. (1982). Energy economics and technology. Baltimore: Johns Hopkins University Press.

Trích dẫn kiểu Chicago

LeBel, Phillip G. Energy Economics and Technology. Baltimore: Johns Hopkins University Press, 1982.

ציטוט MLA

LeBel, Phillip G. Energy Economics and Technology. Baltimore: Johns Hopkins University Press, 1982.