In situ regenerable membranes for reverse osmosis / 
by Fred E. Littman ... [et al.] 
 - Washington, D. C. :  United States Government Printing Office,  1971 
 - 53 p. ;  26 cm. 
 - Research and development progress report ;  no. 701 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Membranes (Technology)<br/>Sewage--Purification--Reverse osmosis process
<br/><br/><label>Dewey Class. No.: </label>628.167