Lunsford, E. M. (1989). The 1-2-3 upgrade guide. Bantam Books.
Cita Chicago (17th ed.)Lunsford, E. Michael. The 1-2-3 Upgrade Guide. New York: Bantam Books, 1989.
Cita MLA (9th ed.)Lunsford, E. Michael. The 1-2-3 Upgrade Guide. Bantam Books, 1989.
Atenció: Aquestes cites poden no estar 100% correctes.