HOPKINS, J. A. Farm Records And Accounting John A. Hopkins And Earl O. Heady. Iowa State University Press.
Chicagoスタイル(17版)引用形式HOPKINS, John A. Farm Records And Accounting John A. Hopkins And Earl O. Heady. Iowa State University Press.
MLA(8版)引用形式HOPKINS, John A. Farm Records And Accounting John A. Hopkins And Earl O. Heady. Iowa State University Press.
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