APA aipamena

Duncan, S., Scott, S., & Duncan, C. (1994). SMALLPOX EPIDEMICS IN CITIES IN BRITAIN.

Chicago Style aipamena

Duncan, S., S. Scott, and C. Duncan. SMALLPOX EPIDEMICS IN CITIES IN BRITAIN. 1994.

MLA aipamena

Duncan, S., et al. SMALLPOX EPIDEMICS IN CITIES IN BRITAIN. 1994.