Knowles, M. S., Holton, E. F., & Swanson, R. A. (2011). The adult learner: The definitive classic in adult education and human resource development (Seventh edition.). Elsevier/Butterworth-Heinemann.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रKnowles, Malcolm S., Elwood F. Holton, और Richard A. Swanson. The Adult Learner: The Definitive Classic in Adult Education and Human Resource Development. Seventh edition. Oxord, UK: Elsevier/Butterworth-Heinemann, 2011.
एमएलए (9वां संस्करण) प्रशस्ति पत्रKnowles, Malcolm S., et al. The Adult Learner: The Definitive Classic in Adult Education and Human Resource Development. Seventh edition. Elsevier/Butterworth-Heinemann, 2011.
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