Biblio
“Interim Progress Report Dendrochronology Of Bristlecone Pine”. Tucson: Laboratory of Tree-Ring Research.
. 1968. 
“Tree-Ring Growth In High-Altitude Bristlecone Pine As Related To Meteorological Factors: Research Proposal”. Tucson: Laboratory of Tree-Ring Research.
. 1968. 
“Continuation Of Studies On The Dendrochronology Of Bristlecone Pine (Pinus Aristata Englem.) (Continuation Of Research Grant Nsf-G 19949): A Research Proposal ”. Tucson: Laboratory of Tree-Ring Research.
. 1963. 