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Figure This!

The World Almanac and Book of Facts 2000. Mahwah, NJ: World Almanac Books, 1999.

The Old Farmers Almanac. Dublin, NH: Yankee Publishing Inc., 1999.

 

 

History of Plumbing
www.theplumber.com/h_index.html

Fresh Water Ecology and Pollution
www.stemnet.nf.ca/CITE/water.htm#General

Niagara Falls
freespace.virgin.net/john.cletheroe/usa_can/ny/niagara.htm

Free Toilets in Los Angeles
www.monolake.org/socalwater/ultralow.htm

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