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100   $a20750508d1969      uy|            0
101 0 $aeng
135   $aur|n|---|||||
181   $ctxt
182   $cc
183   $acr
200 10$aStudies in abstract families of languages /$fby Seymour Ginsburg, Sheila Greibach, John Hopcroft
210  1$aProvidence :$cAmerican Mathematical Society,$d1969.
215   $a1 online resource (58 p.)
225 1 $aMemoirs of the American Mathematical Society ;$vnumber 87
300   $aCover title.
311   $a0-8218-1287-4 
320   $aIncludes bibliographies.
327   $a""Contents""; ""Abstract families of languages""; ""Independence of AFL operations""; ""Pre-AFL""
410  0$aMemoirs of the American Mathematical Society ;$vno. 87.
606   $aMachine theory
606   $aComputer programming
606   $aRobots
615  0$aMachine theory.
615  0$aComputer programming.
615  0$aRobots.
700   $aGinsburg$b Seymour$f1927-$047015
702   $aGreibach$b Sheila
702   $aHopcroft$b John E.$f1939-
801  0$bMiAaPQ
801  1$bMiAaPQ
801  2$bMiAaPQ
906   $aBOOK
912   $a9910817214903321
996   $aStudies in abstract families of languages$93970635
997   $aUNINA