00506nam a2200181Ia 4500 IN-BaIIA 211028s9999 xx 000 0 eng d IIA Library 550.38 STR Strangway, David W 6454 History of the earth's magnetic field David W. Strangway New York McGraw-Hill 1970 viii, 168p. Earth and planetary science series Geomagnetism Paleomagnetism 6455 BK 3642 3642 0 0 0 0 BAN BAN GEN 1970-12-14 30.37 0 550.38/ STR 4065 2021-11-05 30.37 1970-12-14 BK Rs. 30.37