APA引文

Breuer, H., Knuppen, R., & Haupt, O. (1970). Effect of 2-substituted oestrogens on the enzymic methylation of catecholamines in human liver.

Citação norma Chicago

Breuer, H., R. Knuppen, and O. Haupt. Effect of 2-substituted Oestrogens On the Enzymic Methylation of Catecholamines in Human Liver. 1970.

MLA引文

Breuer, H., R. Knuppen, and O. Haupt. Effect of 2-substituted Oestrogens On the Enzymic Methylation of Catecholamines in Human Liver. 1970.

警告：這些引文格式不一定是100％准確.