Dubey, R. M. (1992). Human ecology and environmental education Vol 2.
シカゴスタイル引用形Dubey, R M. Human Ecology and Environmental Education Vol 2. Allahabad, Chugh Publications, 1992.
MLA引用形式Dubey, R M. Human Ecology and Environmental Education Vol 2. 1992.
警告: この引用は必ずしも正確ではありません.