APA

Pólya G., Billigheimer C. E. & Szegó G. (1976). Probles and theorems in analysis. New York: Springer-Verlag.

Chicago

Pólya George, Billigheimer C E and Szegó Gabor. 1976. Probles and theorems in analysis. New York: Springer-Verlag.

Harvard

Pólya G., Billigheimer C. E. and Szegó G. (1976). Probles and theorems in analysis. New York: Springer-Verlag.

MLA

Pólya George, Billigheimer C E and Szegó Gabor. Probles and theorems in analysis. New York: Springer-Verlag. 1976.