Schulze E D Ed. Forest decline and air pollution A study of spruce - London Springer Verlas UK 1989 - "xviii,475p." cm. - "Ecological studies ,77" . Bib chapterwise Standard No.: 138390 Source: Thesis and Dissertations Subjects--Topical Terms: Agricultural Geography Dewey Class. No.: "U672(J):(G:5), M9"