HAMMER, W. (1989). Occupational safety management and engineering (Ed.4.). Prentice Hall.
芝加哥风格引文HAMMER, Willie. Occupational Safety Management and Engineering. Ed.4. New Jersey: Prentice Hall, 1989.
MLA引文HAMMER, Willie. Occupational Safety Management and Engineering. Ed.4. Prentice Hall, 1989.
警告：这些引文格式不一定是100％准确.