एपीए उद्धरण

Crossley,J.N, & Crossley, J. N. (1972). What is mathematical logic? Dover Publications.

शिकागो स्टाइल उद्धरण

Crossley,J.N, और John N. Crossley. What Is Mathematical Logic? New York: Dover Publications, 1972.

एमएलए उद्धरण

Crossley,J.N, और John N. Crossley. What Is Mathematical Logic? Dover Publications, 1972.