1. National Primary Drinking Water Regulations: Monitoring Requirements for Public Drinking Water Supplies;USEPA;Final Rule. Fed. Reg.,1996
2. Commercial Labs: How Accurate Are They?;Clancy;Jour. AWWA,1994
3. USEPA Method 1622;Clancy;Jour. AWWA,1999
4. USEPA ICR Protozoa Data Set 6: ICR Validated 18-Month Data Washington
5. USEPA Method 1622: Cryptosporidium in Water by Filtration/IMS/FA Ofce. of Water. Washington 1999