00570nam a2200193Ia 4500 CTU_59176 210402s9999 xx 000 0 und d 40000 363.7394 Th108 Nguyễn Hồng Thao Ô nhiễm môi trường biển Việt Nam luật pháp và thực tiễn Nguyễn Hồng Thao H. Thống Kê 2003 marine pollution Minh Trung tâm Học liệu Trường Đại học Cần Thơ