=LDR 00000nam a2200000ui 4500 =001 4025 =008 250530s1978\\\\xx\|||||||||||||||||eng\d =082 04$a551.44 BRO =100 1\$aBrook, G. A. =245 10$aThe origin of labyrinth and tower karst and the climatic conditions necessary for their development =260 \\$bNature,$c1978 =700 1\$aFord, D. C. =852 \\$bFreeman Library$cPamphlets$h551.44 BRO