APA Style

Proakis, J, G., Manolakis, D, G. (c2007). Digital signal processing (4th ed.). New Delhi: Pearson Prentice Hall.

MLA Style

Proakis, John, G.., Manolakis, Dimitris, G.. "Digital signal processing". 4th ed. New Delhi: Pearson Prentice Hall, c2007. print.