Christian missions and social progress : a sociological study of foreign missions (vol. 1)

http://www.archive.org/details/socialprogress00dennuoft/

Christian missions and social progress : a sociological study of foreign missions (vol. 3)

http://www.archive.org/details/socialprogress03dennuoft/

Islam and missions : being papers read at the Second Missionary Conference on behalf of the Mohammedan World at Lucknow, January 23-28, 1911 / edited by E.M. Wherry, S.M. Zwemer, C.G. Mylrea.

http://www.archive.org/details/islamandmissions012033mbp

Christian missions and social progress : a sociological study of foreign missions (vol. 2)

http://www.archive.org/details/socialprogress02dennuoft/

Islam and other religions, by Al-Hajj Khwaja Kamal-ud-Din.

http://www.archive.org/details/islamandotherrel00kamauoft