Columbia subject headings:
Mountaineering--Environmental aspects--Everest, Mount (China and Nepal)
Mountaineering--Everest, Mount (China and Nepal)
Sherpa (Nepalese people)
Harvard subject headings:
Environmental impact statements
Everest, Mount (China and Nepal)--Environmental conditions.
Mountaineering--Environmental aspects--Everest, Mount (China and Nepal)
Mountaineering--Everest, Mount (China and Nepal)
Sherpa (Nepalese people)
Travel writing
Princeton subject headings:
Mountaineering--Environmental aspects--Everest, Mount (China and Nepal).
Mountaineering--Everest, Mount (China and Nepal)
Sherpa (Nepalese people)