Y. P. S. Pangtey · 5 obras en el catálogoObrasHHigh altitudes of the HimalayaHigh altitudes of the HimalayaWWestern HimalayaWestern HimalayaMMining & environment in IndiaMining & environment in IndiaPPlant diversity of the HimalayaPlant diversity of the HimalayaOOrchids of Kumaun HimalayaOrchids of Kumaun Himalaya