एपीए उद्धरण

Crossley, J. What is mathematical logic (2nd ed.). Oxford University.

शिकागो स्टाइल उद्धरण

Crossley, J.N. What Is Mathematical Logic. 2nd ed. London: Oxford University.

एमएलए उद्धरण

Crossley, J.N. What Is Mathematical Logic. 2nd ed. Oxford University.