एपीए उद्धरण

Shapiro, H. S. (1971). Topics in approximation theory. Springer-Verlag.

शिकागो स्टाइल उद्धरण

Shapiro, Harold S. Topics in Approximation Theory. Berlin, New York: Springer-Verlag, 1971.

एमएलए उद्धरण

Shapiro, Harold S. Topics in Approximation Theory. Springer-Verlag, 1971.