Marshak, S., & Stephen Marshak. Earth: Portrait of a planet. New York: W. W. Norton.
シカゴスタイル引用形Marshak, Stephen, , Stephen Marshak. Earth: Portrait of a Planet. New York: W. W. Norton.
MLA引用形式Marshak, Stephen, , Stephen Marshak. Earth: Portrait of a Planet. New York: W. W. Norton.
警告: この引用は必ずしも正確ではありません.