Long, L., & Long, N. (1994). Introduction to computers and information systems (4 th.). Prentice Hall.
Dyfyniad Arddull ChicagoLong, Larry, and Nancy Long. Introduction to Computers and Information Systems. 4 th. New Jersey: Prentice Hall, 1994.
Dyfyniad MLALong, Larry, and Nancy Long. Introduction to Computers and Information Systems. 4 th. Prentice Hall, 1994.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.