Singh, S. N. (1986). The Yogi and the bear: Story of Indo-Soviet relations. Allied Publishers.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSingh, S. Nihal. The Yogi and the Bear: Story of Indo-Soviet Relations. Allied Publishers, 1986.
एमएलए (9वां संस्करण) प्रशस्ति पत्रSingh, S. Nihal. The Yogi and the Bear: Story of Indo-Soviet Relations. Allied Publishers, 1986.
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