Tohutoro APA (7th ed.)

Hammer, W. (1985). Occupational safety management and engineering (3ª ed.). Prentice Hall.

Tohutoru Kātū Chicago

Hammer, Willie. Occupational Safety Management and Engineering. 3ª ed. Prentice Hall, 1985.

Tohutoro MLA

Hammer, Willie. Occupational Safety Management and Engineering. 3ª ed. Prentice Hall, 1985.