Francis, T. (1957). Symposium on Controlled Vaccine Field Trials: Poliomyelitis.
Citação norma ChicagoFrancis, Thomas. Symposium On Controlled Vaccine Field Trials: Poliomyelitis. 1957.
MLA citiranjeFrancis, Thomas. Symposium On Controlled Vaccine Field Trials: Poliomyelitis. 1957.
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