na INLIS000000000022960 20230410025324 0010-1218004798 230410 g 1 eng Safety techniques for radioactive tracers / J.C. Boursnell BOURSNELL, J.C. Cambridge : Cambridge University Press, 1958 xii, 68 p. : ill. ; 19 cm. Bibl.: p. 65-68 614.898 614.898 BOU s RADIOACTIVE TRACERS SAFETY TECHNIQUES 497/62