Perkins, C. E. (1916). A manual of otology for students and practitioners. Lea & Febiger.
Čikaški stil citiranja (17. izdanje)Perkins, Charles Edwin. A Manual of Otology for Students and Practitioners. Philadelphia: Lea & Febiger, 1916.
MLA način citiranja (8. izdanje)Perkins, Charles Edwin. A Manual of Otology for Students and Practitioners. Lea & Febiger, 1916.
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