एपीए उद्धरण

Ross, C. A. (1984). Geology of coal. Hutchinson ross.

शिकागो स्टाइल उद्धरण

Ross, Charles. A. Geology of Coal. Newyork: Hutchinson ross, 1984.

एमएलए उद्धरण

Ross, Charles. A. Geology of Coal. Hutchinson ross, 1984.