Graf, R. F. (1988). Electronic databook (4th ed.). Tab Professional and Reference Books.
Chicago Style (17th ed.) CitationGraf, Rudolf F. Electronic Databook. 4th ed. Blue Ridge Summit, PA: Tab Professional and Reference Books, 1988.
MLA (9th ed.) CitationGraf, Rudolf F. Electronic Databook. 4th ed. Tab Professional and Reference Books, 1988.
Warning: These citations may not always be 100% accurate.