APA (7th ed.) Citation

Long, L. E. (1994). Introduction to computers and information systems (4th ed.). Prentice Hall.

Chicago Style (17th ed.) Citation

Long, Larry E. Introduction to Computers and Information Systems. 4th ed. Englewood Cliffs, N.J.: Prentice Hall, 1994.

MLA (9th ed.) Citation

Long, Larry E. Introduction to Computers and Information Systems. 4th ed. Prentice Hall, 1994.