LEADER 00922nam--2200325---450- 001 990003223600203316 005 20090422081308.0 035 $a000322360 035 $aUSA01000322360 035 $a(ALEPH)000322360USA01 035 $a000322360 100 $a20090422d1968----km-y0itay50------ba 101 $aeng 102 $aUK 105 $a||||||||001yy 200 1 $a<>introduction to modal logic$eG.E. Hughes and M.J. Cresswell$fHughes G.E. 210 $aLondon$cMethuen and Co.$d1968 215 $aXI, 388 p.$d22 cm 606 0 $aLogica matematica 676 $a511.3 700 1$aHUGHES,$bG.E.$0603705 701 1$aCRESSWELL,$bM.J.$047852 801 0$aIT$bsalbc$gISBD 912 $a990003223600203316 951 $a511.3 HUG$b4568/CBS$c511.3$d00216476 959 $aBK 969 $aSCI 979 $aRSIAV6$b90$c20090422$lUSA01$h0813 996 $aIntroduction to modal logic$91011752 997 $aUNISA