Carter, A. A., & Gould, S. J. (1999). The art of national geographic: Century of illustration (Special catalog edition.). National Geographic Society.
Citace podle Chicago (17th ed.)Carter, Alice A., a Stephen Jay Gould. The Art of National Geographic: Century of Illustration. Special catalog edition. Washington, D.C.: National Geographic Society, 1999.
Citace podle MLA (9th ed.)Carter, Alice A., a Stephen Jay Gould. The Art of National Geographic: Century of Illustration. Special catalog edition. National Geographic Society, 1999.
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