Gaya APA

Berglund, D. (2010). ICD-9-CM : Classification Of Procedures International Classification Of Diseases 9th Revision Clinical Modification . Amerika: World Health Organization.

Gaya MLA

Berglund, David. "ICD-9-CM : Classification Of Procedures International Classification Of Diseases 9th Revision Clinical Modification". Amerika: World Health Organization, 2010. Text.