APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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