TY - BOOK AU - Vaughan, J.P. (ed.) AU - Morrow, R.H. ED - WHO TI - Manual of epidemiology for district health management / edited by J.P. Vaughan, R.H. Morrow SN - 924154404X U1 - B 16.51 VAU -9720 CY - Geneva, 1989. KW - Epidemiology - Research - Methodology KW - Health and medical care - Management KW - HEA ER -