एपीए उद्धरण

Pitts, J. (1984). A manual of geology for civil engineers. Wiley.

शिकागो स्टाइल उद्धरण

Pitts, John. A Manual of Geology for Civil Engineers. Wiley, 1984.

एमएलए उद्धरण

Pitts, John. A Manual of Geology for Civil Engineers. Wiley, 1984.