Nash, R. (1973). Classrooms observed: The teacher's perception and the pupil's performance. Routledge & K. Paul.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNash, Roy. Classrooms Observed: The Teacher's Perception and the Pupil's Performance. London ; Boston: Routledge & K. Paul, 1973.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNash, Roy. Classrooms Observed: The Teacher's Perception and the Pupil's Performance. Routledge & K. Paul, 1973.
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