Hardwood tree conditions in Ontario : results of FIDS Unit surveys 1987-1995
Hopkin Anthony A.
Dumond Terry
Sault Ste. Marie : Canadian Forest Service , 1996. - 1 dvojlist : 5 obr., 2 fot., 1 tab. + 28 cm
xkni - KNIHY
1, z toho voľných 1