Hallanaro, Eeva-Liisa. Nature in Northern Europe : biodiversity in a changing environment / by Eeva-Liisa Hallanaro and Marja Pylvänäinen. - Copenhagen, Denmark : Nordic Council of Ministers, 2001. - 350 p. : col. ill. ; 31 cm. - ( NORD (Series) ; 2001:13.) . ISBN: 9289306351 Subjects--Topical Terms: Biological diversity -- Europe, Northern; Ecology -- Europe, Northern; Natural history -- Europe, Northern. Dewey Class. No.: 574.9947 HAL