Johnson, C. E. <br/><br/>
African farming improvement in the Plateau Tonga maize areas of Northern Rhodesia. 

 - Lusaka :  Govt. Printer,  1956. 
 - Agricultural bulletin ;  11 .
 - Northern Rhodesia. Ministry of African Agriculture. Agricultural bulletin. II ;  Northern Rhodesia. Ministry of African Agriculture. Agricultural bulletin. II ;  Northern Rhodesia. Ministry of African Agriculture. Agricultural bulletin. II ;  Northern Rhodesia. Ministry of African Agriculture. Agricultural bulletin. II ;  11. .
<br/><br/> At head of title: Northern Rhodesia. Department of Agriculture. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture -- Zambia -- Southern Province.--Agriculture -- Zambia -- Southern Province.--Agriculture -- Zambia -- Southern Province.<br/>Corn -- Zambia -- Southern Province.--Corn -- Zambia -- Southern Province.--Corn -- Zambia -- Southern Province.