Crone, P., & Cook, M. A. (1977). Hagarism : the making of the Islamic world / Patricia Crone, Michael Cook: The making of the Islamic world. Cambridge University Press.
Chicago Style (17th ed.) CitationCrone, Patricia, and M. A. Cook. Hagarism : The Making of the Islamic World / Patricia Crone, Michael Cook: The Making of the Islamic World. Cambridge: Cambridge University Press, 1977.
MLA (9th ed.) CitationCrone, Patricia, and M. A. Cook. Hagarism : The Making of the Islamic World / Patricia Crone, Michael Cook: The Making of the Islamic World. Cambridge University Press, 1977.
Warning: These citations may not always be 100% accurate.