000 00440pam a2200157a 44500
082 _a511.1
_bJ64r
100 _aJohnston, James Halcro
245 1 _aTHE REVERSE NOTATION
_cINTRODUCING NEGATIVE DIGITS WITH TWELVE AS BASE
260 _aLondon And Glasgow
_bBlackie And Son Limited
_c1937
300 _a74
650 _aNumeration
650 _aWeights And Measures
650 _aTime Measurements
964 _gCIRC
997 _a6218 C
999 _c409517
_d409517