Não informado. (2003). Data processing in education. Data Processing in Education.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Data Processing in Education. Philadelphia, Pa: Data Processing in Education, 2003.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Data Processing in Education. Data Processing in Education, 2003.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.