Waller, J. M. <br/><br/>
Plant clinic handbook  
J.M. Waller, B.J. Ritchie, and M. Holderness. 
 - Oxon ;  New York, N.Y. :  CAB International,  1998. 
 - 94 pages  ill. ;  25 cm. 
 - IMI technical handbook ;  no. 3 .