Citação norma APA

(1973). A controlled field trial of the effectiveness of monovalent classical and El Tor cholera vaccines in the Philippines.

Citação norma Chicago

A Controlled Field Trial of the Effectiveness of Monovalent Classical and El Tor Cholera Vaccines in the Philippines. 1973.

Citação norma MLA

A Controlled Field Trial of the Effectiveness of Monovalent Classical and El Tor Cholera Vaccines in the Philippines. 1973.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.