LeBel, P. G. (1982). Energy economics and technology. Baltimore: Johns Hopkins University Press.
Trích dẫn kiểu ChicagoLeBel, Phillip G. Energy Economics and Technology. Baltimore: Johns Hopkins University Press, 1982.
ציטוט MLALeBel, Phillip G. Energy Economics and Technology. Baltimore: Johns Hopkins University Press, 1982.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.