Langer. (1999). Exel 2000: Visual quickstart guide. Peachpit Press.
Chicago Style (17th ed.) CitationLanger. Exel 2000: Visual Quickstart Guide. Berkeley,CA: Peachpit Press, 1999.
MLA (9th ed.) CitationLanger. Exel 2000: Visual Quickstart Guide. Peachpit Press, 1999.
Warning: These citations may not always be 100% accurate.