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Variation Between and Within Populations in a Provenance Trial of Pinus Sylvestris at Nordanas, Lat 64 19', Long 18 09', Alt 400 M

出版	Skogshoegskolan, 1976
URL	http://books.google.com.hk/books?id=2Uos0AEACAAJ&hl=&source=gbs_api