APA(7版)引用形式

Maps.com (Firm) & ebrary, Inc. (2000). Expansion of railroads to 1860. Maps.com.

Chicagoスタイル(17版)引用形式

Maps.com (Firm) , Inc ebrary. Expansion of Railroads to 1860. [S.l.]: Maps.com, 2000.

MLA(9版)引用形式

Maps.com (Firm) , Inc ebrary. Expansion of Railroads to 1860. Maps.com, 2000.

警告: この引用は必ずしも正確ではありません.