APA Format
Gordis, Leon . (). Epidemiology : Ethical and professional issues in epidemiology, ( Ket. lihat Bab. 20 ) ( halaman 349-359 ). : Philadelphia: Saunders Elsevier, 2009
MLA Format
Gordis, Leon . Epidemiology : Ethical and professional issues in epidemiology, ( Ket. lihat Bab. 20 ) ( halaman 349-359 ). : Philadelphia: Saunders Elsevier, 2009,
Australian/Harvard Format
Gordis, Leon . . Epidemiology : Ethical and professional issues in epidemiology, ( Ket. lihat Bab. 20 ) ( halaman 349-359 ). Philadelphia: Saunders Elsevier, 2009, 
Warning: These citations may not always be 100% accurate.