Gaya APA
Widmer, N, S. et al (2018).
Digital systems principles and applications 12th edition (Ed. 12. ; Cet. 2.).
Edinburgh:
Pearson.
Gaya MLA
Widmer, Neal, S.. et al.
"Digital systems principles and applications 12th edition".
Ed. 12. ; Cet. 2.
Edinburgh:
Pearson,
2018.
Text.