Παραπομπή APA

Swift, R. J., & Wirkus, S. A. (2007). A course in ordinary differential equations. Chapman & Hall/CRC.

Παραπομπή Chicago Style

Swift, Randall J., και Stephen Allen Wirkus. A Course in Ordinary Differential Equations. Boca Raton, FL: Chapman & Hall/CRC, 2007.

Παραπομπή MLA

Swift, Randall J., και Stephen Allen Wirkus. A Course in Ordinary Differential Equations. Chapman & Hall/CRC, 2007.