Παραπομπή APA

Bernaldez, F. P. (1900). Human Vaccine as a Prophylactic of Smallpox: Its Advantages and Disadvantages.

Παραπομπή Chicago Style

Bernaldez, Francisco P. Human Vaccine As a Prophylactic of Smallpox: Its Advantages and Disadvantages. 1900.

Παραπομπή MLA

Bernaldez, Francisco P. Human Vaccine As a Prophylactic of Smallpox: Its Advantages and Disadvantages. 1900.

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