PFEIFFER J W. (1975). HB OF STRUCTURED EXPERIENCES FOR HUMAN REL. TRAINING VOL.V. UNIVERSITY ASSOCIATION.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPFEIFFER J W. HB OF STRUCTURED EXPERIENCES FOR HUMAN REL. TRAINING VOL.V. CALIFORNIA: UNIVERSITY ASSOCIATION, 1975.
एमएलए (9वां संस्करण) प्रशस्ति पत्रPFEIFFER J W. HB OF STRUCTURED EXPERIENCES FOR HUMAN REL. TRAINING VOL.V. UNIVERSITY ASSOCIATION, 1975.
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