Biblio
“Dendrochronology Of Bristlecone Pine”. Tucson: Laboratory of Tree-Ring Research.
. 1984. Ferguson, Graybill_ Dendrochronology of Bristlecone Pine_1984.pdf (1.34 MB)“Dendrochronology Of Bristlecone Pine”. Tucson: Laboratory of Tree-Ring Research.
. 1985. Ferguson, Graybill_ Dendrochronology of Bristlecone Pine_1985.pdf (29.3 MB)