Norton, P., & Wilton, R. (1989). The new Peter Norton programmer's guide to the IBM PC & PS/2. World Wide Software & Pub. House.
Citazione stile Chigago Style (17a edizione)Norton, Peter, e Richard Wilton. The New Peter Norton Programmer's Guide to the IBM PC & PS/2. Quezon City: World Wide Software & Pub. House, 1989.
Citatione MLA (9a ed.)Norton, Peter, e Richard Wilton. The New Peter Norton Programmer's Guide to the IBM PC & PS/2. World Wide Software & Pub. House, 1989.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.