American Association of Leisure and Recreation & Pelegrino, D. A. (1975). What recreation research says to the recreation practitioner. American Association of Leisure and Recreation of the American Alliance for Health.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रAmerican Association of Leisure and Recreation और Donald A. Pelegrino. What Recreation Research Says to the Recreation Practitioner. Washington: American Association of Leisure and Recreation of the American Alliance for Health, 1975.
एमएलए (9वां संस्करण) प्रशस्ति पत्रAmerican Association of Leisure and Recreation और Donald A. Pelegrino. What Recreation Research Says to the Recreation Practitioner. American Association of Leisure and Recreation of the American Alliance for Health, 1975.
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