एपीए उद्धरण

Grayson, L. E. (1975). Economics of energy. Princeton: The Darwin Press.

शिकागो स्टाइल उद्धरण

Grayson, Leslie E. Economics of Energy. Princeton: The Darwin Press, 1975.

एमएलए उद्धरण

Grayson, Leslie E. Economics of Energy. Princeton: The Darwin Press, 1975.