MLA

O'Malley, and Robert E O'Malley. Historical Developments In Singular Perturbations. Springer International Publishing, 2014.

APA

O'Malley, O., & O'Malley, R. E. (2014). Historical Developments in Singular Perturbations. Springer International Publishing.

Chicago

O'Malley, and Robert E O'Malley. Historical Developments In Singular Perturbations. : Springer International Publishing, 2014.