WENTZ, C. A. (1998). Safety, health, and environmental protection. McGraw-Hill.
Chicagoスタイル(17版)引用形式WENTZ, Charles A. Safety, Health, and Environmental Protection. Boston: McGraw-Hill, 1998.
MLA(9版)引用形式WENTZ, Charles A. Safety, Health, and Environmental Protection. McGraw-Hill, 1998.
警告: この引用は必ずしも正確ではありません.