00565nam a2200193Ia 4500 IN-BaIIA 211028s9999 xx 000 0 eng d 0-521-22523-X IIA Library 531.51 DAV Davies, P. C. W. 8554 The forces of nature P. C. W. Davies Cambridge Cambridge University Press 1979 viii, 246p. Astronomy and astrophysics thesaurus Gravity 67 Relativity BK 6609 6609 0 0 0 0 BAN BAN GEN 1980-10-06 228.00 0 531.51/ DAV 7350 2021-11-05 228.00 1980-10-06 BK Rs. 228.00