)* "Islamic Political Thought" (1968) ISBN 978-0-85224-403-6* "Islamic Surveys: The Influence of Islam on Medieval Europe" (1972) ISBN 978-0-85224-439-5* "The Majesty That Was Islam" (1976) ISBN 978-0-275-51870-7* "What Is Islam?
)* "Islamic Political Thought" (1968) ISBN 978-0-85224-403-6* "Islamic Surveys: The Influence of Islam on Medieval Europe" (1972) ISBN 978-0-85224-439-5* "The Majesty That Was Islam" (1976) ISBN 978-0-275-51870-7* "What Is Islam?