एपीए उद्धरण

Urabe, T. (1993). Dynkin graphs and quadrilateral singularities. Berlin ; New York: Springer-Verlag.

शिकागो स्टाइल उद्धरण

Urabe, Tohsuke. Dynkin Graphs and Quadrilateral Singularities. Berlin ; New York: Springer-Verlag, 1993.

एमएलए उद्धरण

Urabe, Tohsuke. Dynkin Graphs and Quadrilateral Singularities. Berlin ; New York: Springer-Verlag, 1993.