APA

Folland G. B., . (1976). Introduction to partial differential equations. Princeton, NJ: Princeton Univ. Press [u.a.].

Chicago

Folland Gerald B, . 1976. Introduction to partial differential equations. Princeton, NJ: Princeton Univ. Press [u.a.].

Harvard

Folland G. B., . (1976). Introduction to partial differential equations. Princeton, NJ: Princeton Univ. Press [u.a.].

MLA

Folland Gerald B, . Introduction to partial differential equations. Princeton, NJ: Princeton Univ. Press [u.a.]. 1976.