APA Style

Proakis, J, G., Manolakis, D, G. (2007). Digital signal processingrn principles, algorithms, and applicationsrn fourth edition (fourth edition). New Jersey: Pearson.

MLA Style

Proakis, John, G., Manolakis, Dimitris, G. "Digital signal processingrn principles, algorithms, and applicationsrn fourth edition". fourth edition New Jersey: Pearson, 2007. Text.