DK Publishing, Inc. (2022). Timelines of science (First American edition.). DK Publishing.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रDK Publishing, Inc. Timelines of Science. First American edition. New York, New York: DK Publishing, 2022.
एमएलए (8वां संस्करण) प्रशस्ति पत्रDK Publishing, Inc. Timelines of Science. First American edition. DK Publishing, 2022.
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