TY - BOOK AU - Grummitt,W.E. AU - Brown,R.M. AU - Cruikshank,A.J. AU - Fowler,I.L. ED - Atomic Energy of Canada Limited^pCA TI - Recent developments in low background geiger-müller counters SN - 0067-0367 PY - 1956/// CY - Chalk River PB - AECL ER -