DUKES, C. S. (2014). Provision and progress for two year olds. SAGE.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रDUKES, Chris Smith. Provision and Progress for Two Year Olds. SAGE, 2014.
एमएलए (9वां संस्करण) प्रशस्ति पत्रDUKES, Chris Smith. Provision and Progress for Two Year Olds. SAGE, 2014.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.