Παραπομπή APA

Berger, M. S., & Berger, M. (1968). Perspectives in nonlinearity: An introduction to nonlinear analysis. W. A. Benjamin, inc.

Παραπομπή Chicago Style

Berger, Melvyn S., και Marion Berger. Perspectives in Nonlinearity: An Introduction to Nonlinear Analysis. New York: W. A. Benjamin, inc, 1968.

Παραπομπή MLA

Berger, Melvyn S., και Marion Berger. Perspectives in Nonlinearity: An Introduction to Nonlinear Analysis. W. A. Benjamin, inc, 1968.