Singh, T. V. (1982). Studies in tourism wildlife parks conservation. Metropolitan Book.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSingh, Tej Vir. Studies in Tourism Wildlife Parks Conservation. New Delhi: Metropolitan Book, 1982.
एमएलए (9वां संस्करण) प्रशस्ति पत्रSingh, Tej Vir. Studies in Tourism Wildlife Parks Conservation. Metropolitan Book, 1982.
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