Columbia subject headings:
Abū Dharr al-Ghifārī, -approximately 652.
Communism and Islam.
Economics--Religious aspects--Islam.
Harvard subject headings:
Abū Dharr al-Ghifārī, -approximately 652.
Communism and Islam.
Economics--Religious aspects--Islam
Islam--Economic aspects
Princeton subject headings:
Abū Dharr al-Ghifārī, -approximately 652.
Communism and Islam.