APA ציטוט

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

Citação norma Chicago

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

ציטוט MLA

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