Cita APA

(1989). Connaught withdraws polio vaccine after tests reveal reduced potency.

Chicago Style Citation

Connaught Withdraws Polio Vaccine After Tests Reveal Reduced Potency. 1989.

Cita MLA

Connaught Withdraws Polio Vaccine After Tests Reveal Reduced Potency. 1989.

Atenció: Aquestes cites poden no estar 100% correctes.