SPENCER, E. H. basic concepts of physical geology#Elizabeth humpris Spencer. Thomas Y Growel.
Chicagoスタイル(17版)引用形式SPENCER, Elizabeth Humphris. Basic Concepts of Physical Geology#Elizabeth Humpris Spencer. Thomas Y Growel.
MLA(8版)引用形式SPENCER, Elizabeth Humphris. Basic Concepts of Physical Geology#Elizabeth Humpris Spencer. Thomas Y Growel.
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