APA (7e ed.) Bronvermelding

Clark, W. I. (1922). Health service in industry. The Macmillan company.

Chicago (17e ed.) Bronvermelding

Clark, William Irving. Health Service in Industry. New York: The Macmillan company, 1922.

MLA (8e ed.) Bronvermelding

Clark, William Irving. Health Service in Industry. The Macmillan company, 1922.