APA

Friedman A., . (1964). Partial differential equations of parabolic type. Englewood Cliffs, N.J. [u.a.]: Prentice-Hall.

Chicago

Friedman Avner, . 1964. Partial differential equations of parabolic type. Englewood Cliffs, N.J. [u.a.]: Prentice-Hall.

Harvard

Friedman A., . (1964). Partial differential equations of parabolic type. Englewood Cliffs, N.J. [u.a.]: Prentice-Hall.

MLA

Friedman Avner, . Partial differential equations of parabolic type. Englewood Cliffs, N.J. [u.a.]: Prentice-Hall. 1964.