Trial, Joan Garner <br/><br/>
Forest insect and disease management :  evaluation report / 
Joan Garner Trial [and] K. Elizabeth Gibbs 
 - Washington, D. C. :  United States Government Printing Office,  1978 
 - 10 p. ;  26 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Forest insects--United States<br/>Trees--Diseases and pests--United States
<br/><br/><label>Dewey Class. No.: </label>634.960973