APA (7 वां संस्करण) प्रशस्ति पत्र
Preece, J. (2009). Lifelong learning and development: A southern perspective. Continuum.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Preece, Julia. Lifelong Learning and Development: A Southern Perspective. London ; New York: Continuum, 2009.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Preece, Julia. Lifelong Learning and Development: A Southern Perspective. Continuum, 2009.
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