APA (7th ed.) Citation

Weber Systems, Inc. (1984). IBM PC and XT user's handbook (1st Ballantine bk ed.). Ballantine Books.

Chicago Style (17th ed.) Citation

Weber Systems, Inc. IBM PC and XT User's Handbook. 1st Ballantine bk ed. New York: Ballantine Books, 1984.

MLA (9th ed.) Citation

Weber Systems, Inc. IBM PC and XT User's Handbook. 1st Ballantine bk ed. Ballantine Books, 1984.