APA
Coddington E. A. ., Levinson, . (1972). Theory of ordinal differential equations. New Delhi: Tata Mc-Graw Hill Publishing Company.
Chicago
Coddington Earl A, Levinson, . 1972. Theory of ordinal differential equations. New Delhi: Tata Mc-Graw Hill Publishing Company.
Harvard
Coddington E. A. ., Levinson, . (1972). Theory of ordinal differential equations. New Delhi: Tata Mc-Graw Hill Publishing Company.
MLA
Coddington Earl A, Levinson, . Theory of ordinal differential equations. New Delhi: Tata Mc-Graw Hill Publishing Company. 1972.