Bell, L. (1992). Managing teams in secondary schools. Routledge.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBell, Les. Managing Teams in Secondary Schools. London ; New York: Routledge, 1992.
एमएलए (9वां संस्करण) प्रशस्ति पत्रBell, Les. Managing Teams in Secondary Schools. Routledge, 1992.
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