Panagrosso, D., & Williams, O. (1999). Test prep MCSD Visual Basic 6 exams. New Riders.
芝加哥风格引文Panagrosso, David, 与 Owen Williams. Test Prep MCSD Visual Basic 6 Exams. Indianapolis, Ind.: New Riders, 1999.
MLA引文Panagrosso, David, 与 Owen Williams. Test Prep MCSD Visual Basic 6 Exams. New Riders, 1999.
警告：这些引文格式不一定是100％准确.