Columbia subject headings:
Explorers--Pakistan.
Hayward, George.
Hindu Kush-Himalayan Region--History.
Harvard subject headings:
Explorers--Pakistan.
Hayward, George.
Hindu Kush-Himalayan Region--History.
Princeton subject headings:
Explorers--Hindu Kush-Himalayan Region--Biography.
Hayward, George, 1839-1870.
Hindu Kush-Himalayan Region--History.