Παραπομπή APA

Cook, J., & Sankaran, B. W. (1988). General surgery at the district hospital. World Health Organisation.

Παραπομπή Chicago Style

Cook, John, και Balu Wasunnas Sankaran. General Surgery at the District Hospital. Geneva: World Health Organisation, 1988.

Παραπομπή MLA

Cook, John, και Balu Wasunnas Sankaran. General Surgery at the District Hospital. World Health Organisation, 1988.