Making gases in Zambia. 

 - Lusaka :  Ministry of Education, CDC,  1972. 
 - Science reader for pupils .
<br/><br/>pt. 1. Carbon dioxide -- pt. 2. Acetybone -- pt. 3. Oxygen and nitrogen. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Carbon dioxide.<br/>Acetylene.<br/>Oxygen.<br/>Nitrogen.