एपीए उद्धरण

A. Frohlich. (1968). Formal Groups: Lecture notes in mathematics/cA. Frohlich. NewYork.

शिकागो स्टाइल उद्धरण

A. Frohlich. Formal Groups: Lecture Notes in Mathematics/cA. Frohlich. NewYork, 1968.

एमएलए उद्धरण

A. Frohlich. Formal Groups: Lecture Notes in Mathematics/cA. Frohlich. NewYork, 1968.