APA
Cook J. S. B. &. W. A. E. O., . (1991). Surgery at the district hospital. World Health Orgnization, Geneva: .
Chicago
Cook John(ed) Sankaran Balu(ed) & Wasunna Ambrose E O, . 1991. Surgery at the district hospital. World Health Orgnization, Geneva: .
Harvard
Cook J. S. B. &. W. A. E. O., . (1991). Surgery at the district hospital. World Health Orgnization, Geneva: .
MLA
Cook John(ed) Sankaran Balu(ed) & Wasunna Ambrose E O, . Surgery at the district hospital. World Health Orgnization, Geneva: . 1991.