APA Format
Gordis, Leon . (). Epidemiology : From association to causation : deriving inferences from epidemiologic studies, ( Ket. lihat Bab. 14 ) ( halaman 227-246 ). : Philadelphia: Saunders Elsevier, 2009
MLA Format
Gordis, Leon . Epidemiology : From association to causation : deriving inferences from epidemiologic studies, ( Ket. lihat Bab. 14 ) ( halaman 227-246 ). : Philadelphia: Saunders Elsevier, 2009,
Australian/Harvard Format
Gordis, Leon . . Epidemiology : From association to causation : deriving inferences from epidemiologic studies, ( Ket. lihat Bab. 14 ) ( halaman 227-246 ). Philadelphia: Saunders Elsevier, 2009, 
Warning: These citations may not always be 100% accurate.