Morgenstern, E. K. <br/><br/>
Plus-tree selection :  review and outlook / 
by E.K. Morgenstern ... [et al.]. 
 - Ottawa :  Dept. of the Environment, Canadian Forestry Service,  1975. 
 - 72 p. : ill. 
 - Publication (Canadian Forestry Service, Dept. of the Environment) ; no. 1347 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Tree breeding.<br/>Pine.