LILLEY,R. (2010). DEALING WITH DIFFICULT PEOPLE. KOGAN PAGE LTD.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रLILLEY,R. DEALING WITH DIFFICULT PEOPLE. NEW-YORK: KOGAN PAGE LTD, 2010.
एमएलए (9वां संस्करण) प्रशस्ति पत्रLILLEY,R. DEALING WITH DIFFICULT PEOPLE. KOGAN PAGE LTD, 2010.
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