एपीए उद्धरण

John Warvelle, H. 1. (1977). Probability Methods in Oil Exploration. Wiley Eastern.

शिकागो स्टाइल उद्धरण

John Warvelle, Harbaugh 1926. Probability Methods in Oil Exploration. New York: Wiley Eastern, 1977.

एमएलए उद्धरण

John Warvelle, Harbaugh 1926. Probability Methods in Oil Exploration. Wiley Eastern, 1977.