Gaya APA

MARRIN, A. (2002). DR. JENNER AND THE SPECKLED MONSTER : The Search for The Smallpox Vaccine . New York: A Dutton Book.

Gaya MLA

MARRIN, Albert. "DR. JENNER AND THE SPECKLED MONSTER : The Search for The Smallpox Vaccine". New York: A Dutton Book, 2002. Text.