TY  - GEN
AU  - Holderness, M
AU  - Ritchie, B.J
AU  - Waller, J.M
TI  - Plant clinic handbook
T2  - IMI Technical Handbook No.3
U1  - 632 WAL 
CY  - U K, C.A.B. International
KW  - Plant clinic -hand book/ Plant disease- diagnosis
ER  -