एपीए उद्धरण

Stephani, H. (1989). Differential equations: Their solution using symmetries. Cambridge University Press.

शिकागो स्टाइल उद्धरण

Stephani, Hans. Differential Equations: Their Solution Using Symmetries. Cambridge [England] ; New York: Cambridge University Press, 1989.

एमएलए उद्धरण

Stephani, Hans. Differential Equations: Their Solution Using Symmetries. Cambridge University Press, 1989.