Biology of rust resistance in forest trees:  
/ proceedings of NATO- IUFRO advanced study institute August 17-24, 1969 
 - Washington, D.C.,   U.S Department of Agriculture,   1972 
 - xi, 679p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture 
<br/><br/><label>Subjects--Index Terms: </label>Rust disease  Tree breeding  
<br/><br/><label>Universal Decimal Class. No.: </label>632.2  / L2