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0

Douglass, AE. “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)

1929

of Washington, Carneigie Institution. 1929. “Reports On The Conferences Of Cycles”. Washington, D.C. : Carneige Institution.

Carnegie Institution of Washington_Reports on the Conferences of Cycles_1929.pdf (31.03 MB)

1933

Douglass, AE. 1933. “Evidences Of Cycles In Tree Ring Records”. Proceedings Of The National Academy Of The Sciences. Proceedings Of The National Academy Of The Sciences.

Douglass, AE_Evidences of Cycles in Tree RIng Records_1933.pdf (11.71 MB)