APA Style

Proakis, J, G., Manolakis, D, G. (2007). Digital Signal Processing (4th Edition). India.: Pearson/Prentice Hall,.

MLA Style

Proakis, John, G.., Manolakis, Dimitris, G.. "Digital Signal Processing". 4th Edition India.: Pearson/Prentice Hall,, 2007. Book.