Curtis, Robert O. Levels-of-Growing-Stock Cooperative Study in Dougla-Fir: Report No.12-the Iron Creek Study: 1966-89.Research Paper PNW-RP-475. December 1994 / Robert O. Curtis, Gary W. Clendenen. -- 1.vyd. -- Portland : U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station, 1994. -- 67 s.: 41 obr., tab.

I. Clendenen, Gary W.
ZV001