APA Citation

 Widmer, N. S. (2017).  Digital systems: Principles and applications.  Pearson.

Trích dẫn kiểu Chicago

 Widmer, Neal S.  Digital Systems: Principles and Applications.  Pearson, 2017.

MLA Citation

 Widmer, Neal S.  Digital Systems: Principles and Applications.  Pearson, 2017.

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