OCCHIOGROSSO JAMES. (1992). CLIPPER DEVELOPER`S LIBRARY WITH DISK. GALGOTIA PUBLICATIONS.
芝加哥风格引文OCCHIOGROSSO JAMES. CLIPPER DEVELOPER`S LIBRARY WITH DISK. DELHI: GALGOTIA PUBLICATIONS, 1992.
MLA引文OCCHIOGROSSO JAMES. CLIPPER DEVELOPER`S LIBRARY WITH DISK. GALGOTIA PUBLICATIONS, 1992.
警告：这些引文格式不一定是100％准确.