एपीए उद्धरण

Freed, D. S., & Uhlenbeck, K. K. (1984). Instantons and four-manifolds.-2nded. Springer-Verlag.

शिकागो स्टाइल उद्धरण

Freed, Daniel S., और Karen K. Uhlenbeck. Instantons and Four-manifolds.-2nded. New York: Springer-Verlag, 1984.

एमएलए उद्धरण

Freed, Daniel S., और Karen K. Uhlenbeck. Instantons and Four-manifolds.-2nded. Springer-Verlag, 1984.