Cita APA (7th ed.)
Welsh, J., & Elder, J. (1988). Introduction to Pascal (3rd ed.). Prentice Hall.
Cita Chicago (17th ed.)
Welsh, Jim, i John Elder. Introduction to Pascal. 3rd ed. New York: Prentice Hall, 1988.
Cita MLA (9th ed.)
Welsh, Jim, i John Elder. Introduction to Pascal. 3rd ed. Prentice Hall, 1988.
Atenció: Aquestes cites poden no estar 100% correctes.