Cita APA (7th ed.)
Kelley, D. S. (2002). Pro/ENGINEER 2001 instructor. McGraw-Hill.
Cita Chicago (17th ed.)
Kelley, David S. Pro/ENGINEER 2001 Instructor. Boston: McGraw-Hill, 2002.
Cita MLA (9th ed.)
Kelley, David S. Pro/ENGINEER 2001 Instructor. McGraw-Hill, 2002.
Atenció: Aquestes cites poden no estar 100% correctes.