TY - BOOK AU - Kark, Sidney L. TI - Epidemiology and community medicine SN - 0838522203 PY - 1974/// CY - New York PB - Appleton-Century-Crofts KW - Community health services KW - Epidemiology KW - Public health KW - Socioeconomic factors N1 - Acc. No. 11923 ER -