TY  - GEN
AU  - 
AU  - Helle, W., ed.
AU  - Sabelis, M.W., ed.
TI  - Spider mites their biology, natural enemies and control: Vol. 1B
PY  - 1985///
CY  - Amsterdam
PB  - Elsevier Science Publishers
KW  - Spider Mites
ER  -