Old-growth forests in the Sierra Nevada [microform] : by type in 1945 and 1993 and ownership in 1993 / Debby Beardsley, Charles Bolsinger, and Ralph Warbington (Research paper PNW-RP ; 516)
Old-growth forests in the Sierra Nevada [microform] : by type in 1945 and 1993 and ownership in 1993 / Debby Beardsley, Charles Bolsinger, and Ralph Warbington