00517nam a2200181Ia 4500 IN-BaIIA 211028s9999 xx 000 0 eng d IIA Library 537.531 SPR Sproull, Wayne T. 1884 X-Rays in practice Wayne T. Sproull New York McGraw-Hill 1946 vii, 615p. Extraterrestrial radiation 1885 NASA thesaurus X-Rays 1886 BK 882 882 0 0 0 0 BAN BAN GEN 0000-00-00 0 537.531/ SPR 909 2021-11-05 0000-00-00 BK