00897nas 2200289 a 450 99621088980331620221206130245.0(OCoLC)320297779(CKB)954928534072(CONSER) 2011250727(EXLCZ)9995492853407219801105b19801989 uy engurcnu|||||Environmental technology letters[electronic resource][Kew, Surrey, England] [Science & Technology Letters]1980-19890143-2060 Environ. technol. lett.Environmental engineeringPeriodicalsEnvironmental protectionPeriodicalsEnvironmental engineeringEnvironmental protection628/.05JOURNAL996210889803316Environmental technology letters795050UNISA