وسائل ٹیگ کردہ: Waste Management
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Developed by and for college students, this is the first book to outline a detailed, practical program for researching, evaluating, and improving the environmental integrity of college campuses. Profiling the successful environmental programs of schools around the globe, this guide tells how to...
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01 جنوری 1956 The purpose of this monographis to present methods and processes by which organic waste materials, which constitute a health hazard and a source of disease communication, may be treated for sanitary disposal and utilization in agriculture. These important objectives-sanitary treatment for the...