Beaulieu, Jean Breeding program and strategy for white spruce in Quebec / Jean Beaulieu. -- Quebec : Canadian Forest Service, 1996. -- 25 s. : 1 obr., 4 príl. ; 28 cm. -- (Information report ; LAU-X-117E). -- ISBN 0-662-24422-2

630*165.4+630*165.3
ZV001