APA Format
Vergara, Alfredo E; Vermund, Sten H. . (). Principles of...: Global health, ( Bab. 30 ) ( halaman 698-734 ). : USA: Delmar Chenage Learning, 2009
MLA Format
Vergara, Alfredo E; Vermund, Sten H. . Principles of...: Global health, ( Bab. 30 ) ( halaman 698-734 ). : USA: Delmar Chenage Learning, 2009,
Australian/Harvard Format
Vergara, Alfredo E; Vermund, Sten H. . . Principles of...: Global health, ( Bab. 30 ) ( halaman 698-734 ). USA: Delmar Chenage Learning, 2009, 
Warning: These citations may not always be 100% accurate.