Marshak, S., & Prothero, D. R. Earth: Portrait of a planet.
Chicagoスタイル(17版)引用形式Marshak, Stephen, , Donald R. Prothero. Earth: Portrait of a Planet.
MLA(8版)引用形式Marshak, Stephen, , Donald R. Prothero. Earth: Portrait of a Planet.
警告: この引用は必ずしも正確ではありません.