APA način citiranja

Drechsel, H., Thieken, A., Reissbrodt, R., Jung, G., & Winkelmann, G. (1993). Alpha-keto acids are novel siderophores in the genera Proteus, Providencia, and Morganella and are produced by amino acid deaminases.

Čikaški stil citiranja

Drechsel, H., A. Thieken, R. Reissbrodt, G. Jung, i G. Winkelmann. Alpha-keto Acids Are Novel Siderophores in the Genera Proteus, Providencia, and Morganella and Are Produced By Amino Acid Deaminases. 1993.

MLA način citiranja

Drechsel, H., et al. Alpha-keto Acids Are Novel Siderophores in the Genera Proteus, Providencia, and Morganella and Are Produced By Amino Acid Deaminases. 1993.