Harley, J. L. <br/><br/>
Biology of mycorrhiza 
J. L. Harley 
 - 2nd ed. 
 - London  Leonard Hill  1969 
 - xxii, 334p.: ill.; 25cm.- 
 - Plant science monographs .
<br/><br/><label>Dewey Class. No.: </label>589.2  / HAR