[3]
Seasonal and geograph icorigin effects on cold hardiness of white spruce buds,foliage and stems[J]. SimpsonD G. Revue Canadienne de Recherche Forestiere . 1994
[3]
Seasonal and geograph icorigin effects on cold hardiness of white spruce buds,foliage and stems[J]. SimpsonD G. Revue Canadienne de Recherche Forestiere . 1994