Sparks, N. (2016). Two by two (First mass market edition.). Grand Central Pub.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSparks, Nicholas. Two by Two. First mass market edition. New York: Grand Central Pub, 2016.
एमएलए (8वां संस्करण) प्रशस्ति पत्रSparks, Nicholas. Two by Two. First mass market edition. Grand Central Pub, 2016.
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