Singh, V., & Sharma, M. (1998). Mountain ecosystems: A scenario of unsustainability. Indus publishing company.
シカゴスタイル引用形Singh, Vir, , M.L Sharma. Mountain Ecosystems: A Scenario of Unsustainability. New Delhi: Indus publishing company, 1998.
MLA引用形式Singh, Vir, , M.L Sharma. Mountain Ecosystems: A Scenario of Unsustainability. Indus publishing company, 1998.
警告: この引用は必ずしも正確ではありません.