=LDR 00000nam a2200000ui 4500 =001 6261 =008 250612s1966\\\\xx\|||||||||||||||||eng\d =082 04$a518.3 HUG =100 1\$aHughes, G.E. =245 10$aThe Elements of Formal Logic =260 \\$aLondon :$bMethuen,$c1966 =852 \\$bGeography Basement$cBooks$h518.3 HUG