World Health Organization. (1986). Early detection of occupational diseases. World Health Organization.
Chicago Style (17. basım) AtıfWorld Health Organization. Early Detection of Occupational Diseases. Geneva: World Health Organization, 1986.
MLA (9th ed.) AtıfWorld Health Organization. Early Detection of Occupational Diseases. World Health Organization, 1986.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..