MLA

Perlman, Stanley; Holmes, Kathryn V, et al. The Nidoviruses. Springer US, 2006.

APA

Perlman, K. V, Holmes, K. V, Perlman, S., & Holmes, K. (2006). The Nidoviruses. Springer US.

Chicago

Perlman, Stanley; Holmes, Kathryn V., Kathryn V Holmes, Stanley Perlman, and Kathryn Holmes. The Nidoviruses. : Springer US, 2006.