Ardu.qxdQUINTESSENCE INTERNATIONAL 1940s, Dean et al were able to show a strong relation between fluoride concentration in drinking water and the prevalence and severity
Transactions of the ASAE Vol. 48(1): 149−154 2005 American Society of Agricultural Engineers ISSN 0001−2351 149 CONTROLLING SOIL EROSION AND RUNOFF WITH POLYACRYLAMIDE