Citação norma APA

Utt, E. A., Eddy, C. K., Keshav, K. F., & Ingram, L. O. (1991). Sequencing and expression of the Butyrivibrio fibrisolvens xylB gene encoding a novel bifunctional protein with beta-D-xylosidase and alpha-L-arabinofuranosidase activities.

Citação norma Chicago

Utt, E A., C K. Eddy, K F. Keshav, and L O. Ingram. Sequencing and Expression of the Butyrivibrio Fibrisolvens XylB Gene Encoding a Novel Bifunctional Protein With Beta-D-xylosidase and Alpha-L-arabinofuranosidase Activities. 1991.

Citação norma MLA

Utt, E A., C K. Eddy, K F. Keshav, and L O. Ingram. Sequencing and Expression of the Butyrivibrio Fibrisolvens XylB Gene Encoding a Novel Bifunctional Protein With Beta-D-xylosidase and Alpha-L-arabinofuranosidase Activities. 1991.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.