APA citiranje

Francis, T. (1957). Symposium on Controlled Vaccine Field Trials: Poliomyelitis.

Citação norma Chicago

Francis, Thomas. Symposium On Controlled Vaccine Field Trials: Poliomyelitis. 1957.

MLA citiranje

Francis, Thomas. Symposium On Controlled Vaccine Field Trials: Poliomyelitis. 1957.

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