Columbia subject headings:
Afghanistan--History--Soviet occupation, 1979-1989.
Afghanistan--Politics and government--1973-1989.
Communism--Afghanistan.
Ḥizb-i Dimūkrātīk-i Khalq-i Afghānistān.
Harvard subject headings:
Afghanistan--History--Soviet occupation, 1979-1989.
Afghanistan--Politics and government--1973-1989.
Communism--Afghanistan.
Ḥizb-i Dimūkrātīk-i Khalq-i Afghānistān.
Princeton subject headings:
Afghanistan--History--Soviet occupation, 1979-1989.
Afghanistan--Politics and government--1973-1989.
Communism--Afghanistan.
Ḥizb-i Dimūkrātīk-i Khalq-i Afghānistān.