Norton, P., & Wilton, R. (1989). The new Peter Norton programmer's guide to the IBM PC & PS/2. World Wide Software & Pub. House.
Cita Chicago (17th ed.)Norton, Peter, i Richard Wilton. The New Peter Norton Programmer's Guide to the IBM PC & PS/2. Quezon City: World Wide Software & Pub. House, 1989.
Cita MLA (9th ed.)Norton, Peter, i Richard Wilton. The New Peter Norton Programmer's Guide to the IBM PC & PS/2. World Wide Software & Pub. House, 1989.
Atenció: Aquestes cites poden no estar 100% correctes.