Regan, M. (2019). Understanding Sikhism. Essential Library.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रRegan, Michael. Understanding Sikhism. Minneapolis, Minnesota: Essential Library, 2019.
एमएलए (8वां संस्करण) प्रशस्ति पत्रRegan, Michael. Understanding Sikhism. Essential Library, 2019.
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