APA (7th ed.) Citation

Halliday, J., Klenerman, P., & Barnes, E. (2011). Vaccination for hepatitis C virus: Closing in on an evasive target.

Chicago Style (17th ed.) Citation

Halliday, J., P. Klenerman, and E. Barnes. Vaccination for Hepatitis C Virus: Closing in on an Evasive Target. 2011.

MLA (9th ed.) Citation

Halliday, J., et al. Vaccination for Hepatitis C Virus: Closing in on an Evasive Target. 2011.