00721nam a2200205Ia 4500 CTU_149587 210402s9999 xx 000 0 und d 333.7 T559/Vol.2 Tietenberg, Thomas H. Environmental and natural resource economics (Reference materials of the training course) Tom Tietenberg New York, NY HarperCollins Publishers 1992 Environmental policy,Natural resources,Raw materials,Tài nguyên thiên nhiên Government policy,Government policy,Chính sách quốc gia Nguyên Trung tâm Học liệu Trường Đại học Cần Thơ