Uptec Computer Consultan. (2002). Information technology: Acc. to DOEACC syllabus for O level examination. Excel.
芝加哥风格引文Uptec Computer Consultan. Information Technology: Acc. to DOEACC Syllabus for O Level Examination. New Delhi: Excel, 2002.
MLA引文Uptec Computer Consultan. Information Technology: Acc. to DOEACC Syllabus for O Level Examination. Excel, 2002.
警告：这些引文格式不一定是100％准确.