Freeman. Trees, Shrubs, and Woody Vines in Kansas. University Press of Kansas.
Chicagoスタイル(17版)引用形式Freeman. Trees, Shrubs, and Woody Vines in Kansas. University Press of Kansas.
MLA(8版)引用形式Freeman. Trees, Shrubs, and Woody Vines in Kansas. University Press of Kansas.
警告: この引用は必ずしも正確ではありません.