Plant diseases of viral, viroid, mycoplasma and uncertain etiology/ 
editor: Karl Maramorosch. 
 - Boulder:  Westview Press,  1992. 
 - 190 p. :   ill. ;   25 cm. 
<br/><br/><label>ISBN: </label>0813316162 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Virus diseases of plants.<br/>Viroid diseases of plants.<br/>Mycoplasma diseases in plants.<br/>Plant diseases--Etiology.