SIEGEL, C. (1995). Mastering visual FoxPro 3.-- ed.3. Tech Pub.PTE LTD.
芝加哥风格引文SIEGEL, Charles. Mastering Visual FoxPro 3.-- Ed.3. Singapore: Tech Pub.PTE LTD, 1995.
MLA引文SIEGEL, Charles. Mastering Visual FoxPro 3.-- Ed.3. Tech Pub.PTE LTD, 1995.
警告：这些引文格式不一定是100％准确.