Christian, D. (2022). Future stories: What's next? (First edition.). Little, Brown Spark.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रChristian, David. Future Stories: What's Next? First edition. New York: Little, Brown Spark, 2022.
एमएलए (8वां संस्करण) प्रशस्ति पत्रChristian, David. Future Stories: What's Next? First edition. Little, Brown Spark, 2022.
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