Walpole, R. E. (1982). Introduciton to statistics (3rd ed.). Pearson Education.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWalpole, Ronald E. Introduciton to Statistics. 3rd ed. Jurong, Singapore: Pearson Education, 1982.
एमएलए (9वां संस्करण) प्रशस्ति पत्रWalpole, Ronald E. Introduciton to Statistics. 3rd ed. Pearson Education, 1982.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.