Ingram, C. (1995). The drinking water book: A complete guide to safe drinking water. Berkeley, CA: Ten Speed Press.
Παραπομπή Chicago StyleIngram, Colin. The Drinking Water Book: A Complete Guide to Safe Drinking Water. Berkeley, CA: Ten Speed Press, 1995.
Παραπομπή MLAIngram, Colin. The Drinking Water Book: A Complete Guide to Safe Drinking Water. Berkeley, CA: Ten Speed Press, 1995.
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