Counting tree growth rings moderately difficult to distinguish
By: by C.B. Briscoe and M. Chudnoff.
Contributors: Chudnoff, Martin.; Institute of Tropical Forestry (Río Piedras, San Juan, P.R.)
Series: U.S. Forest Service research note ITF -- no. 1.
Publisher: Institute of Tropical Forestry
Place of publication: Rio Piedras, Puerto Rico
Subjects: Tree-rings.
Notes: "December 1964"

SHORT ANALYTIC RECORD. Authors verified in NAF.