Gaya APA

WHO, . (2010). ICD-9-CM Classification of Procedures Classification of Procedures International Classification of Diseases 9th Revision Clinical Modification . Chicago: Marland /.

Gaya MLA

WHO, . "ICD-9-CM Classification of Procedures Classification of Procedures International Classification of Diseases 9th Revision Clinical Modification". Chicago: Marland /, 2010. Text.