TY - BOOK T1 - An introduction to environmental systems A2 - Dury, Georg H. LA - English PP - Exeter u.a. PB - Heinemann YR - 1982 ED - Instructor's manual, 1. publ., reprinted UL - http://glotrec.wdi-staging.gei.de/cat/Record/gei564458422 SN - 0435080024 SN - 0435352628 KW - Lehrbuch ER -