Columbia subject headings:
Coal miners--Kyrgyzstan--Social life and customs.
Coal mines and mining--Kyrgyzstan.
Working class--Kyrgyzstan--Social life and customs.
Harvard subject headings:
Coal miners--Kyrgyzstan--Social life and customs.
Coal mines and mining--Kyrgyzstan.
Working class--Kyrgyzstan--Social life and customs.
Princeton subject headings: