MLA

Pereira, Nuno, and Nuno Paulino. Design and Implementation of Sigma Delta Modulators (??m) for Class D Audio Amplifiers Using Differential Pairs. Springer International Publishing, 2015.

APA

Pereira, N., & Paulino, N. (2015). Design and Implementation of Sigma Delta Modulators (??M) for Class D Audio Amplifiers using Differential Pairs. Springer International Publishing.

Chicago

Pereira, Nuno, and Nuno Paulino. Design and Implementation of Sigma Delta Modulators (??M) for Class D Audio Amplifiers Using Differential Pairs. : Springer International Publishing, 2015.