Citação norma APA

Powers, D. C., Fries, L. F., Murphy, B. R., Thumar, B., & Clements, M. L. (1991). In elderly persons live attenuated influenza A virus vaccines do not offer an advantage over inactivated virus vaccine in inducing serum or secretory antibodies or local immunologic memory.

Citação norma Chicago

Powers, D C., L F. Fries, B R. Murphy, B. Thumar, and M L. Clements. In Elderly Persons Live Attenuated Influenza A Virus Vaccines Do Not Offer an Advantage Over Inactivated Virus Vaccine in Inducing Serum or Secretory Antibodies or Local Immunologic Memory. 1991.

Citação norma MLA

Powers, D C., et al. In Elderly Persons Live Attenuated Influenza A Virus Vaccines Do Not Offer an Advantage Over Inactivated Virus Vaccine in Inducing Serum or Secretory Antibodies or Local Immunologic Memory. 1991.

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