TY  - BOOK
AU  - Helle, W.,
TI  - Spider Mites : Their Biology, Natural Enemies and Control Vol. 1 A
SN  - 0444423729
U1  - 632.6542 
PY  - 1985///
CY  - Oxford
PB  - Elsevier
KW  - Plant injuries, diseases & pests
ER  -