Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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