ZIMMER, J. (1985). Abstraction for programmers. McGraw-Hill.
Cita Chicago (17th ed.)ZIMMER, J.A. Abstraction for Programmers. New York: McGraw-Hill, 1985.
Cita MLA (9th ed.)ZIMMER, J.A. Abstraction for Programmers. McGraw-Hill, 1985.
Atenció: Aquestes cites poden no estar 100% correctes.