TY  - BOOK
AU  - D.L. Ebbels
AU  -  J.E. King, 
TI  - Plant health : The scientific basis for administrative control of plant diseases and pests
SN  - 0-632-00294-8
U1  - 632.3 
PY  - 1979///
CY  - Oxford
PB  - Blackwell Scientific Publication
ER  -