is this isbn number correct for the book discrete time signal processing?
If you are talking about the book by Alan V. Oppenheim, it depends on what edition you are talking about. That ISBN number is for the first international hardcover edition of the book published in 1989. Each edition has different numbers. The first U.S. Hardcover edition has the following two ISBN numbers: • ISBN-10: 0132146355 • ISBN-13: 978-0132146357 The second U.S. Hardcover edition has the following two numbers: • ISBN-10: 0137549202 • ISBN-13: 978-0137549207 There were also a few paperback and “cheap” reprints with different numbers. The ISBN-13 numbers are new numbers that went into use as of January 1st, 2007. The ISBN-10 numbers are being phased out. (If you need