APA aipamena

Heatley, N. G. (1944). A method for the assay of penicillin.

Chicago Style aipamena

Heatley, N. G. A Method for the Assay of Penicillin. 1944.

MLA aipamena

Heatley, N. G. A Method for the Assay of Penicillin. 1944.

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