00474cam a22001934a 4500003001000000005001700010008004100027020001500068040002500083041000800108044000800116080001700124100001900141245003300160260003000193650001900223655001900242700001900261AR-SsjUIB20250710145501.0250429s1977 xxk 000 0 eng d a0582552478 aAR-SsjUIBcAR-SsjUIB0 aeng axxk a802.0-07:0011 aBolitho, A. R.10aLearn english for science 1. aLondon :bLongman,c1977. 7aIngleĢs2lemb 7aLibro2unescot1 aSandler, P. L.