Upton, C. (1988). Doorkeeper of the heart: Version of Rabi'a. Threshold Books.
Chicago Style (17th ed.) CitationUpton, Charles. Doorkeeper of the Heart: Version of Rabi'a. Threshold Books, 1988.
MLA (8th ed.) CitationUpton, Charles. Doorkeeper of the Heart: Version of Rabi'a. Threshold Books, 1988.
Warning: These citations may not always be 100% accurate.