Vir Singh. (1998). Mountain ecosystems: A scenario of unsustainability. Indus publishing company.
Chicago ZitierstilVir Singh. Mountain Ecosystems: A Scenario of Unsustainability. New delhi: Indus publishing company, 1998.
MLA ZitierstilVir Singh. Mountain Ecosystems: A Scenario of Unsustainability. Indus publishing company, 1998.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.