APA Format
Friis, Robert H; Sellers, Thomas A.
. (). Epidemiology... : Study designs : ecological, cross-sectional, case-control, ( ket. lihat bab. 6 ) ( halaman 213-252 ). : USA: Jones and Bartlett Publisherss, 2004
MLA Format
Friis, Robert H; Sellers, Thomas A.
. Epidemiology... : Study designs : ecological, cross-sectional, case-control, ( ket. lihat bab. 6 ) ( halaman 213-252 ). : USA: Jones and Bartlett Publisherss, 2004,
Australian/Harvard Format
Friis, Robert H; Sellers, Thomas A.
. . Epidemiology... : Study designs : ecological, cross-sectional, case-control, ( ket. lihat bab. 6 ) ( halaman 213-252 ). USA: Jones and Bartlett Publisherss, 2004,
Warning: These citations may not always be 100% accurate.