Citação norma APA

Humphreys, S., Stevenson, A., Bacon, A., Weinhardt, A. B., & Roberts, M. (1999). The Alternative Sigma Factor, ς(E), Is Critically Important for the Virulence of Salmonella typhimurium. American Society for Microbiology.

Citação norma Chicago

Humphreys, Sue, Andrew Stevenson, Andrew Bacon, A. Barbara Weinhardt, and Mark Roberts. The Alternative Sigma Factor, ς(E), Is Critically Important for the Virulence of Salmonella Typhimurium. American Society for Microbiology, 1999.

Citação norma MLA

Humphreys, Sue, et al. The Alternative Sigma Factor, ς(E), Is Critically Important for the Virulence of Salmonella Typhimurium. American Society for Microbiology, 1999.

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