Cita APA (7th ed.)

Ashton, I., & Gill, F. (1992). Monitoring for health hazards at work (2nd ed.).

Cita Chicago (17th ed.)

Ashton, Indira, i F.S Gill. Monitoring for Health Hazards at Work. 2nd ed. Oxford : Blackwell Scientific Pub, 1992.

Cita MLA (9th ed.)

Ashton, Indira, i F.S Gill. Monitoring for Health Hazards at Work. 2nd ed. 1992.