MLA

Alagar, V.S, and K Periyasamy. Specification of Software Systems. Springer London, 2011.

APA

Alagar, V., & Periyasamy, K. (2011). Specification of Software Systems. Springer London.

Chicago

Alagar, V.S, and K Periyasamy. Specification of Software Systems. : Springer London, 2011.