APA
Polgar Stephen & Thomas Shane A, . (1981). Introduction to research in the health sciences. Churchill livingstone, London: .
Chicago
Polgar Stephen & Thomas Shane A, . 1981. Introduction to research in the health sciences. Churchill livingstone, London: .
Harvard
Polgar Stephen & Thomas Shane A, . (1981). Introduction to research in the health sciences. Churchill livingstone, London: .
MLA
Polgar Stephen & Thomas Shane A, . Introduction to research in the health sciences. Churchill livingstone, London: . 1981.