APA(7版)引用形式
Maps.com (Firm) & ebrary, Inc. (1999). Early voyages of exploration, c. 1000-1609 CE. Maps.com.
Chicagoスタイル(17版)引用形式
Maps.com (Firm) , Inc ebrary. Early Voyages of Exploration, C. 1000-1609 CE. [S.l.]: Maps.com, 1999.
MLA(9版)引用形式
Maps.com (Firm) , Inc ebrary. Early Voyages of Exploration, C. 1000-1609 CE. Maps.com, 1999.
警告: この引用は必ずしも正確ではありません.