APA

Leighton W., . (1952). An introduction to the theory of ordinary differential equations. New York: McGraw-Hill.

Chicago

Leighton Walter, . 1952. An introduction to the theory of ordinary differential equations. New York: McGraw-Hill.

Harvard

Leighton W., . (1952). An introduction to the theory of ordinary differential equations. New York: McGraw-Hill.

MLA

Leighton Walter, . An introduction to the theory of ordinary differential equations. New York: McGraw-Hill. 1952.