Philipson, William Raymond. <br/><br/>
The vascular cambium :  its development and activity / 
W. R. Philipson, Josephine M. Ward, B. G. Butterfield. 
 - London :  Chapman and Hall,  c1971. 
 - vii, 182 p. :  ill. 
<br/><br/><label>ISBN: </label>0412104008 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cambium.