TY  - BOOK
AU  - Polya, John
TI  - Are we safe? : a layman's guide to controversy in public health : fluoridation, smoking, insecticides, x-rays, cholesterol
U1  - BIB-TELLO/15.04.01/1723 
PY  - 1964///
CY  - Canberra
PB  - F.W. Cheshire, 
KW  - SALUD PÚBLICA
ER  -