Katalog Biblioteki Uniwersytetu Przyrodniczego w Poznaniu

Twenty-one-year development of Douglas-fir stands repeatedly thinned at varying intervals.

Reukema, Donald L.

Twenty-one-year development of Douglas-fir stands repeatedly thinned at varying intervals. - 1972. - s. [2], 23 : il. , tab. ; 27 cm. - PNW-141 . - Research Paper. Pacific Northwest Forest and Range Experiment Station PNW-141 .

bibliogr. = USDA For. Serv. Res. Pap.