1. Slaves, spices, & ivory in Zanzibar : integration of an East African commercial empire into the world economy, 1770-1873 /: integration of an East African commercial empire into the world economy, 1770-1873. (1987) Other Names: Sheriff, Abdul Record Type: Book Extent: 1 online resource (xx, 297 pages), illustrations View Content: Available online (eLD content is only available in our Reading Rooms) ↗