Malhotra, K. K., & Levasseur, D. (1985). Outbreak of pertussis in a small community.
Dyfyniad Arddull ChicagoMalhotra, Kuldip K., and Donald Levasseur. Outbreak of Pertussis in a Small Community. 1985.
Dyfyniad MLAMalhotra, Kuldip K., and Donald Levasseur. Outbreak of Pertussis in a Small Community. 1985.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.