Prasad, G. (2007). Eco-tourism and environmental management. Discovery publishing house.
シカゴスタイル引用形Prasad, Govind. Eco-tourism and Environmental Management. New Delhi: Discovery publishing house, 2007.
MLA引用形式Prasad, Govind. Eco-tourism and Environmental Management. Discovery publishing house, 2007.
警告: この引用は必ずしも正確ではありません.