How a bill becomes a law to conserve energy grades 9,11,12

How a bill becomes a law to conserve energy grades 9,11,12

গ্রন্থ-পঞ্জীর বিবরন
সংস্থা লেখক: National Science Teachers Association, US Department of Energy
Resource Type: গ্রন্থ
ভাষা:English
প্রকাশিত: Washington The Office c1977.
মালা:Interdisciplinary student/teacher materials in energy, the environment, and the economy
বিষয়গুলি:
Bills, Legislative > Study and teaching. > United States.
Energy conservation > Study and teaching.