SAWKINS, F. J. A text in physical the evolving earth#Frederick J. Sawkins et.1l. Macmillan Publ.
Chicagoスタイル(17版)引用形式SAWKINS, Frederick J. A Text in Physical the Evolving Earth#Frederick J. Sawkins Et.1l. Macmillan Publ.
MLA(8版)引用形式SAWKINS, Frederick J. A Text in Physical the Evolving Earth#Frederick J. Sawkins Et.1l. Macmillan Publ.
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