एपीए उद्धरण

Franko, L. G. (1975). The petroleum industry in Western Europe: A guide to information sources. London: Macmillan.

शिकागो स्टाइल उद्धरण

Franko, Lawrence G. The Petroleum Industry in Western Europe: A Guide to Information Sources. London: Macmillan, 1975.

एमएलए उद्धरण

Franko, Lawrence G. The Petroleum Industry in Western Europe: A Guide to Information Sources. London: Macmillan, 1975.