Old-growth forests in the Sierra Nevada : by type in 1945 and 1993 and ownership in 1993
Beardsley Debby
Bolsinger Charles L.
Warbington Ralph
Portland : USDA Forest Service , 1999. - 45 s. : 19 obr., 13 tab., príl., 28 cm
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1, z toho voľných 1

Predicting Crown Size and Diameter Distributions of Tanoak, Pacifuic Madrone, and Giant Chinkapin Sprout Clumps
Harrington Timothy B.
Tappeiner John C.
Warbington Ralph
Western Journal of Applied Forestry. Vol.7, No.4. (1992), s. 103-108. graf.
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