Positron annihilation 
/ Proceedings of the national symposium.......................................2-4 April, 1979 
 - New Delhi:   South Asian Publishers Pvt ltd,   1980 
 - xviii, 357p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Proceedings
<br/><br/><label>Universal Decimal Class. No.: </label>539.124.6(082.2)  / M0