Biblio
“Unsolicited Proposal Submitted To The Department Of Energy For Dendrochronology Of Bristlecone Pine”. Tucson: Laboratory of Tree-Ring Research.
. 1980. 
“Report On The Chronology Phase Of The Bristlecone Pine Study”. Tucson: Laboratory of Tree-Ring Research.
. 
“Ramifications Of Chronology Building In Bristlecone Pine”. Tucson: Laboratory of Tree-Ring Research.
. 1963. 
. 1966.
Ferguson_Interim Report on the Dendrochronology of Bristlecone Pine Prior to 4,000 B.C._1966.pdf (2.65 MB)

“Interim Progress Report Dendrochronology Of Bristlecone Pine”. Tucson: Laboratory of Tree-Ring Research.
. 1968. 
“Dendrochronology Of Bristlecone Pine”. Tucson: Laboratory of Tree-Ring Research.
. 1984. 
“Dendrochronology Of Bristlecone Pine”. Tucson: Laboratory of Tree-Ring Research.
. 1985. 