Park, J. E. Text book of preventive and social medicine : a treatise on community health / J. E. Park and K. Park. - 8th ed. - India : Messrs Banarsidas Bhanot, c 1981. - 734 p. : ill. ; 25 cm. Includes index. 332 332 Subjects--Topical Terms: Incidence & prevention of disease. Dewey Class. No.: 614 / P22t