APA
Oppenheim A. V., Willsky A. S. S. H., . (2008). Signals & systems. New Delhi: Pearson.
Chicago
Oppenheim Alan V, Willsky Alan S./Nawab S Hamid, . 2008. Signals & systems. New Delhi: Pearson.
Harvard
Oppenheim A. V., Willsky A. S. S. H., . (2008). Signals & systems. New Delhi: Pearson.
MLA
Oppenheim Alan V, Willsky Alan S./Nawab S Hamid, . Signals & systems. New Delhi: Pearson. 2008.