TY  - BOOK
AU  - Beri,K.K.
AU  - Wallis,M.G.
ED  - Papua and New Guinea.
TI  - Environmental health and sanitation
PY  - 1972///]
CY  - [Port Moresby]
PB  - Dept. of Public Health
KW  - Environmental health
KW  - Papua New Guinea
KW  - Hygiene
KW  - Sanitation
ER  -