Cita APA

Ramsay, M. E., Farrington, C. P., & Miller, E. (1993). Age-specific efficacy of pertussis vaccine during epidemic and non-epidemic periods. Cambridge University Press.

Chicago Style Citation

Ramsay, M. E., C. P. Farrington, i E. Miller. Age-specific Efficacy of Pertussis Vaccine During Epidemic and Non-epidemic Periods. Cambridge University Press, 1993.

Cita MLA

Ramsay, M. E., C. P. Farrington, i E. Miller. Age-specific Efficacy of Pertussis Vaccine During Epidemic and Non-epidemic Periods. Cambridge University Press, 1993.