FOX SOFTWARE. (1990). FOXPRO: USER`S GUIDE. FOX SOFTWARE.
Chicago Style (17th ed.) CitationFOX SOFTWARE. FOXPRO: USER`S GUIDE. FOX SOFTWARE, 1990.
MLA引文FOX SOFTWARE. FOXPRO: USER`S GUIDE. FOX SOFTWARE, 1990.
警告：這些引文格式不一定是100％准確.
APA引文