000 00245pam a2200097a 44500
082 _aBTL
_bMONO B-224
100 _aHerbert E Ives
245 1 _aTone reproducatiuon in the halftone photo-engraving process
260 _a
_b
_c
997 _aTR16439 C
999 _c406344
_d406344