TY  - BOOK
AU  - Thimann, K.V.;Critchfield, W.B.;Zimmermann, M.H.
TI  - The physiology of forest trees: a symposium held at the Harvard Forest April, 1957
PY  - 1958///
CY  - New York
PB  - The Ronald Press
KW  - Trees--Physiology
ER  -