TY - BOOK AU - Maithani, B.P. TI - Environmental planning for sustainable development of hill areas SN - 8170993873 U1 - 333.715 21st ed. PY - 1992/// CY - New Delhi PB - Mittal Publications KW - Economic development KW - environmental aspects KW - Environmental policy KW - Himachal Pradesh KW - Sustainable Development ER -