00000cam a22000004a 4500 UP-1685523046125333722 Buklod 20230705160108.0 aa r |||| u| ta 230705s1990 xx r |||| u|eng d 9241544007 (iLib)UPMNL-00000047289 MED rda eng LB 1588 D48 W54 1990 Williams, Trefor. Food, environment, and health a guide for primary school teachers Trefor Williams, Alysoun Moon, Margaret Williams. Geneva World Health Organization c1990. xix, 129 p. 24 cm. text rdacontent unmediated rdamedia volume rdacarrier Developing countries. Environmental health. Health education (Elementary) Nutrition Study and teaching. Teaching. Moon, Alysoun. Williams, Margaret. FO UPMNL CPH TX 364 W55 1990 UPMNL MED LB 1588 D48 W54 1990 UPMNL NTTC LB 1588 D48 W55 1990 Book