Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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