Franklin

MLA

The International Classification of Diseases, 9th Revision, Clinical Modification : Icd.9.cm. 4th ed., 9th rev. [Washington, D.C.]: U.S. Dept. of Health and Human Services, Public Health Service, Health Care Financing Administration, 1991.

APA

(1991). The International classification of diseases, 9th revision, clinical modification : ICD.9.CM. 4th ed., 9th rev. [Washington, D.C.]: U.S. Dept. of Health and Human Services, Public Health Service, Health Care Financing Administration.

Chicago

The International Classification of Diseases, 9th Revision, Clinical Modification: ICD.9.CM. 4th ed., 9th rev. [Washington, D.C.]: U.S. Dept. of Health and Human Services, Public Health Service, Health Care Financing Administration, 1991.