1.
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Berlin : M. Warneck, 1900 (Stuttgart : Christlichen Verlagshaus)
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2.
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London : F. Cass, 1971. ©1970
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3.
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Neukirchen bei Moers : Missionsbuchhandlung Stursberg & Cie, 1889 (J.G. Edner)
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4.
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New York, New York : Palgrave Macmillan, 2013. 2013
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5.
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London : Trübner and Company, 1860.
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6.
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London : Edward Arnold, publisher to the India Office, 1908.
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7.
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London : Hodder and Stoughton, 1873 (Watson and Hazell)
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