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An ecological atlas of forest insect defoliation in Canada 1980-1996
- SIMPSON, Ralph Arnold - COY, Dana.
ecological atlas of forest insect defoliation in Canada 1980-1996. Fredericton : Canadian Forest Service, 1999. 15 s. Information report, M-X-206E. ISBN 0-662-28299-X. ISSN 1195-3799.
Počet záznamov: 1