Verhoeven, F. R. J. (1962). Islam: Its origin and spread in words, maps and pictures. Routledge & Kegan Paul.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रVerhoeven, F. R. J. Islam: Its Origin and Spread in Words, Maps and Pictures. Routledge & Kegan Paul, 1962.
एमएलए (9वां संस्करण) प्रशस्ति पत्रVerhoeven, F. R. J. Islam: Its Origin and Spread in Words, Maps and Pictures. Routledge & Kegan Paul, 1962.
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