APA
Oppenheim A. V., Schafer R. W., .Digital signal processing. New Delhi: .
Chicago
Oppenheim Alan V, Schafer Ronald W, .Digital signal processing. New Delhi: .
Harvard
Oppenheim A. V., Schafer R. W., .Digital signal processing. New Delhi: .
MLA
Oppenheim Alan V, Schafer Ronald W, .New Delhi: . .