SIMPSON ALAN. (1993). UNDERSTANDING DBASE III PLUS. BPB.
芝加哥风格引文SIMPSON ALAN. UNDERSTANDING DBASE III PLUS. NEW DELHI: BPB, 1993.
MLA引文SIMPSON ALAN. UNDERSTANDING DBASE III PLUS. BPB, 1993.
警告：这些引文格式不一定是100％准确.
APA引文
SIMPSON ALAN. (1993). UNDERSTANDING DBASE III PLUS. BPB.
芝加哥风格引文SIMPSON ALAN. UNDERSTANDING DBASE III PLUS. NEW DELHI: BPB, 1993.
MLA引文SIMPSON ALAN. UNDERSTANDING DBASE III PLUS. BPB, 1993.