Cita APA (7th ed.)
Walker Roger S. (1984). Understanding computer science (2 nd ed.). Texas Instruments.
Cita Chicago (17th ed.)
Walker Roger S. Understanding Computer Science. 2 nd ed. Texas: Texas Instruments, 1984.
Cita MLA (9th ed.)
Walker Roger S. Understanding Computer Science. 2 nd ed. Texas Instruments, 1984.
Atenció: Aquestes cites poden no estar 100% correctes.