TY - JOUR AU - ID - weapons-of-mass-destruction/med-letter-roper-to-bradbury-october-24-1946-secret-osti;wmdowmdo01066 SN - PB - ST - TI - MED, Letter, Roper to Bradbury, October 24, 1946, Secret, OSTI. UR - http://primarysources.brillonline.com/browse/weapons-of-mass-destruction/med-letter-roper-to-bradbury-october-24-1946-secret-osti;wmdowmdo01066 PY - ER -