LEET, L. D. Physical geology L. Donald Leet, Sheldon Judson. Prentice Hall.
Chicagoスタイル(17版)引用形式LEET, L. Donald. Physical Geology L. Donald Leet, Sheldon Judson. Prentice Hall.
MLA(8版)引用形式LEET, L. Donald. Physical Geology L. Donald Leet, Sheldon Judson. Prentice Hall.
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