Walker, P. E., & Walker, P. E. (1993). Early philosophical Shiism: The Ismaili Neoplatonism of Abū Yaʿqūb al-Sijistānī (1. publ.). Cambridge Univ. Press.
Chicago Style (17th ed.) CitationWalker, Paul E., and Paul Ernest Walker. Early Philosophical Shiism: The Ismaili Neoplatonism of Abū Yaʿqūb Al-Sijistānī. 1. publ. Cambridge [u.a.]: Cambridge Univ. Press, 1993.
MLA (8th ed.) CitationWalker, Paul E., and Paul Ernest Walker. Early Philosophical Shiism: The Ismaili Neoplatonism of Abū Yaʿqūb Al-Sijistānī. 1. publ. Cambridge Univ. Press, 1993.
Warning: These citations may not always be 100% accurate.