Maps[s] of East Africa showing the routes of Dr. Krapf [and J. Rebmann] between the years 1837 - 1855.
Krapf, Johann Ludwig.
Rebmann, Johann.
[London :  F. Cass & Co. Ltd., 
1968]
In: Travels, Researches, and Missionary Labours ... in Eastern Africa ... By J. Lewis Krapf ... Second edition.