TY  - BOOK
AU  - Philipson,William Raymond
AU  - Ward,Josephine M.
AU  - Butterfield,B.G.
TI  - The vascular cambium: its development and activity 
SN  - 0412104008
PY  - 1971///
CY  - London
PB  - Chapman and Hall
KW  - Cambium
ER  -