00369nam a2200145Ia 4500 230917s9999||||xx |||||||||||||| ||und|| 139733 MAIN English 509 R137S Prasad, Rajeshwar Science and technology: Future perspectives Agra Y K Publishers 1991 x, 106 p. BK 0 0 0 509_000000000000000_R137S 0 110214 MAIN MAIN 2010-02-19 0 509 R137S 143825 2023-09-17 20:54:32 2023-09-17 BK 70420 70420