APA

Waweru P., Anderson R., Steel H., Venter W. D. F., Murdoch D. & Feldman C. (20140220). The prevalence of smoking and the knowledge of smoking hazards and smoking cessation strategies among HIV- positive patients in Johannesburg, South Africa. : South African medical journal = Suid-Afrikaanse tydskrif vir geneeskunde.

Chicago

Waweru Peter, Anderson Ronald, Steel Helen, Venter W D Francois, Murdoch David and Feldman Charles. 20140220. The prevalence of smoking and the knowledge of smoking hazards and smoking cessation strategies among HIV- positive patients in Johannesburg, South Africa. : South African medical journal = Suid-Afrikaanse tydskrif vir geneeskunde.

Harvard

Waweru P., Anderson R., Steel H., Venter W. D. F., Murdoch D. and Feldman C. (20140220). The prevalence of smoking and the knowledge of smoking hazards and smoking cessation strategies among HIV- positive patients in Johannesburg, South Africa. : South African medical journal = Suid-Afrikaanse tydskrif vir geneeskunde.

MLA

Waweru Peter, Anderson Ronald, Steel Helen, Venter W D Francois, Murdoch David and Feldman Charles. The prevalence of smoking and the knowledge of smoking hazards and smoking cessation strategies among HIV- positive patients in Johannesburg, South Africa. : South African medical journal = Suid-Afrikaanse tydskrif vir geneeskunde. 20140220.