Walker, P. E. (1993). Early philosophical Shiism: The Ismaili Neoplatonism of Abu Ya'qub Al Sijistani. Cambridge University Press.
Chicago Style (17th ed.) CitationWalker, Paul E. Early Philosophical Shiism: The Ismaili Neoplatonism of Abu Ya'qub Al Sijistani. Cambridge University Press, 1993.
MLA (8th ed.) CitationWalker, Paul E. Early Philosophical Shiism: The Ismaili Neoplatonism of Abu Ya'qub Al Sijistani. Cambridge University Press, 1993.
Warning: These citations may not always be 100% accurate.