MLA

Verhulst, Ferdinand, L Sirovich, and S. S Antman. Methods and Applications of Singular Perturbations. Springer New York, 2005.

APA

Verhulst, F., Sirovich, L., & Antman, S. S. (2005). Methods and Applications of Singular Perturbations. Springer New York.

Chicago

Verhulst, Ferdinand, L Sirovich, and S. S Antman. Methods and Applications of Singular Perturbations. : Springer New York, 2005.