Sir. John Gray <br/><br/>
Trading Expeditions from the Coast to Lakes Tanganyika and Victoria before 1857 

 - Tanganyika Notes and Records, 49(Dec.1957) 
 - p.226 - 246 
 - Tanganyika Notes and Records, 49(Dec.1957) .
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<br/><br/><label>Subjects--Topical Terms: </label>--Expeditions, Trading--Coast to Lakes Tanganyika and Victoria--Before 1857
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