APA (7e ed.) Bronvermelding

United States. Health Care Financing Administration. (1980). The International classification of diseases, 9th revision, clinical modification: ICD-9-CM. U.S. Dept. of Health and Human Services, Public Health Service, Health Care Financing Administration.

Chicago (17e ed.) Bronvermelding

United States. Health Care Financing Administration. The International Classification of Diseases, 9th Revision, Clinical Modification: ICD-9-CM. Washington, D.C: U.S. Dept. of Health and Human Services, Public Health Service, Health Care Financing Administration, 1980.

MLA (9e ed.) Bronvermelding

United States. Health Care Financing Administration. The International Classification of Diseases, 9th Revision, Clinical Modification: ICD-9-CM. U.S. Dept. of Health and Human Services, Public Health Service, Health Care Financing Administration, 1980.