Varma, O. P. New paradigms of exploration and sustainable mineral development: Vision 2050.
Chicago Edition CitationVarma, O. P. New Paradigms of Exploration and Sustainable Mineral Development: Vision 2050.
MLA引文Varma, O. P. New Paradigms of Exploration and Sustainable Mineral Development: Vision 2050.
警告：这些引文格式不一定是100％准确.