Gould, S. J. (1999). Rocks of ages: Science and religion in the fullness of life. Ballantine Pub. Group.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रGould, Stephen Jay. Rocks of Ages: Science and Religion in the Fullness of Life. New York: Ballantine Pub. Group, 1999.
एमएलए (9वां संस्करण) प्रशस्ति पत्रGould, Stephen Jay. Rocks of Ages: Science and Religion in the Fullness of Life. Ballantine Pub. Group, 1999.
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