A User,s Guide for On-Site Determinations of Stand Density and Growth with a Programmable Calculator. Special Publication 11
Tappeiner John C.
Gourley J.C.
Emmingham William H.
Corvallis : Forest Research Laboratory, Oregon State University , 1985. - 18 s.: obr., 4 tab.
xkni - KNIHY
1, z toho voľných 1