National Geographic Society. (1996). Ancient Greece. National Geographic Society.
Chicagoスタイル(17版)引用形式National Geographic Society. Ancient Greece. Washington, D.C: National Geographic Society, 1996.
MLA(9版)引用形式National Geographic Society. Ancient Greece. National Geographic Society, 1996.
警告: この引用は必ずしも正確ではありません.