Ahmadjian, Vernon. <br/><br/>
The lichen symbiosis / 
Vernon Ahmadjian,  
 - London :  Blaisdell Pub. Co.  c1967 
 - viii, 152 p. :  ill, ;  24 cm. 
 - A Blaisdell book in the pure and applied sciences .
<br/><br/> Include index 
<br/><br/>Bibliography: p. 122-148. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Lichens.<br/>Symbiosis.
<br/><br/><label>Dewey Class. No.: </label>579.7  / AHL 1967