Παραπομπή APA

Walker, A. E., & Johnson, H. C. (1945). Principles and Practice of Penicillin Therapy in Diseases of the Nervous System.

Παραπομπή Chicago Style

Walker, A. Earl, και Herbert C. Johnson. Principles and Practice of Penicillin Therapy in Diseases of the Nervous System. 1945.

Παραπομπή MLA

Walker, A. Earl, και Herbert C. Johnson. Principles and Practice of Penicillin Therapy in Diseases of the Nervous System. 1945.

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