Stradley, W. E. (1973). Administrator's guide to an individualized performance results curriculum. Center for Applied Research in Education.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रStradley, William E. Administrator's Guide to an Individualized Performance Results Curriculum. New York: Center for Applied Research in Education, 1973.
एमएलए (9वां संस्करण) प्रशस्ति पत्रStradley, William E. Administrator's Guide to an Individualized Performance Results Curriculum. Center for Applied Research in Education, 1973.
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