APA (7 वां संस्करण) प्रशस्ति पत्र
Barell, J. (2003). Developing more curious minds. Association for Supervision and Curriculum Development.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Barell, John. Developing More Curious Minds. Alexandria, Va.: Association for Supervision and Curriculum Development, 2003.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Barell, John. Developing More Curious Minds. Association for Supervision and Curriculum Development, 2003.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.