Citação norma APA

Barker, R. D., van Tongeren, M. J., Harris, J. M., Gardiner, K., Venables, K. M., & Newman, T. (1998). Risk factors for sensitisation and respiratory symptoms among workers exposed to acid anhydrides: A cohort study. BMJ Group.

Citação norma Chicago

Barker, R. D., M. J. van Tongeren, J. M. Harris, K. Gardiner, K. M. Venables, and T. Newman. Risk Factors for Sensitisation and Respiratory Symptoms Among Workers Exposed to Acid Anhydrides: A Cohort Study. BMJ Group, 1998.

Citação norma MLA

Barker, R. D., et al. Risk Factors for Sensitisation and Respiratory Symptoms Among Workers Exposed to Acid Anhydrides: A Cohort Study. BMJ Group, 1998.

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