Parkman , F. (1950). The Oregon trail. The New American Library.
Chicagoスタイル(17版)引用形式Parkman , Francis. The Oregon Trail. The New American Library, 1950.
MLA(9版)引用形式Parkman , Francis. The Oregon Trail. The New American Library, 1950.
警告: この引用は必ずしも正確ではありません.