CROCKETT, J. U. (1978). Trees James Underwood Crockett. Time-Life Books.
Chicagoスタイル(17版)引用形式CROCKETT, James Underwood. Trees James Underwood Crockett. Time-Life Books, 1978.
MLA(8版)引用形式CROCKETT, James Underwood. Trees James Underwood Crockett. Time-Life Books, 1978.
警告: この引用は必ずしも正確ではありません.