Hall, J. A. (1957). Timber Resources. United States Department of Agriculture.
Chicagoスタイル(17版)引用形式Hall, J. A. Timber Resources. Madison: United States Department of Agriculture, 1957.
MLA(9版)引用形式Hall, J. A. Timber Resources. United States Department of Agriculture, 1957.
警告: この引用は必ずしも正確ではありません.