TY  - BOOK
AU  - Philipson,William Raymond
AU  - Ward,Josephine M.
AU  - Butterfield,B.G.
TI  - The vascular cambium: its development and activity / 
SN  - 0412104008
U1  - 581.116 19
PY  - 1971///
CY  - London : 
PB  - Chapman and Hall, 
KW  - Câmbio (Botânica)
ER  -