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4200092823 20110722164140.0 aj ca||| 070628s2006 enk a r 0 eng | 0-7518-3426-2 ; 0-7518-3427-0(folded and cased) : CNY200.00 a 50000 W0002421 E000124 N0514105 N0513006 NGL e-uk-en a*A/32 ; a*B/32 英国地质调查所1:50,000系列地质图英格兰和威尔士第256图幅:北伦敦的基岩地质和表层矿床图. chi North London [cartographic material] : bedrock and superficial deposits / British Geological Survey. Scale 1:50,000 (W0°24′21″-E0°1′24″/N51°41′5″-N51°30′6″). Keyworth, Nottingham : British Geological Survey, 2006. 1 map : col. ; 39×58 cm. on sheet 89×75 cm. folded to 23×14 cm. 1:50,000 series. pEngland and Wales ; sheet 256 Geology England ; London Maps. London (England) Geology 2006 Maps. British Geological Survey. British Geological Survey 1:50,000 series. England and Wales ; sheet 256. NGL M000010060 h1 ; r¥200.00 M000010060