Biblio
“Dendrochronology And Studies In Cyclics”. University Of Pennsylvania Bicentennial Conference Proceedings. University Of Pennsylvania Bicentennial Conference Proceedings.
. Douglass, AE_Dendrochronology and Studies in Cyclics.pdf (21.08 MB)“Dendrochronology And Studies In Cyclics”. University Of Pennsylvania Bicentennial Conference. University Of Pennsylvania Bicentennial Conference.
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