The gross domestic product of the Protectorate of Zanzibar, 1957-196 1. 

 - Nairobi :    East African Statistical Department,    1963. 
 - 17 p. ;    25 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Gross domestic product -- Zanzibar -- 1957-1971.