00303nam a22000977a 450000500170000000800410001702000150005804000080007324500750008126000490015620200826115723.0200826b           ||||| |||| 00| 0 eng d  a0521275199  cCML  aEnglish for Science and Technology: A Discourse Approach.cTrimble, L.  aCambridge bCambridge University Pressc1985