एपीए उद्धरण

Lefschetz, S. (1975). Applications of algebraic topology: Graphs and networks : the Picard-Lefschetz theory and Feynman integrals. Springer-Verlag.

शिकागो स्टाइल उद्धरण

Lefschetz, Solomon. Applications of Algebraic Topology: Graphs and Networks : The Picard-Lefschetz Theory and Feynman Integrals. New York: Springer-Verlag, 1975.

एमएलए उद्धरण

Lefschetz, Solomon. Applications of Algebraic Topology: Graphs and Networks : The Picard-Lefschetz Theory and Feynman Integrals. Springer-Verlag, 1975.