APA-referens (7:e uppl.)

Coddington, E. A., & Levinson, N. 1. . . j. a. (1955). Theory of ordinary differential equations. McGraw-Hill.

Chicago-referens (17:e uppl.)

Coddington, Earl A., och Norman 1912- joint auth Levinson. Theory of Ordinary Differential Equations. New York: McGraw-Hill, 1955.

MLA-referens (9:e uppl.)

Coddington, Earl A., och Norman 1912- joint auth Levinson. Theory of Ordinary Differential Equations. McGraw-Hill, 1955.