50 simple things you can do to save the earth

The book introduces environment issues such as greenhouse effect, nitrogen oxide, ultraviolet as well as warns of endangerous in groundwater, acid rain, landfills. The book offers more than 50 suggestions for concerned people who want to take an active role in saving the planet

محفوظ في:
التفاصيل البيبلوغرافية
مؤلف مشترك: The Earth Works Group
التنسيق: كتاب
اللغة:Undetermined
منشور في: Berkeley, CA Earthworks Press 1989
الموضوعات:
الوسوم: إضافة وسم
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