00490cam a22001934a 4500003001000000005001700010008004100027040002500068041000800093044000800101080001600109100001800125245002100143260003000164490004700194650001900241655001900260700001700279AR-SsjUIB20250710145501.0250429s1977 xxk 000 0 eng d aAR-SsjUIBcAR-SsjUIB0 aeng axxk a802.0-07:551 aBarron, Colin10aNucleus geology. aLondon :bLongman,c1977.0 aNucleus english for science and technology 7aIngleĢs2lemb 7aLibro2unescot1 aStewart, Ian