TY  - BOOK
AU  - D.M. Spencer
TI  - Powdery mildews
SN  - 0-12-656850-2
U1  - 632.45 
PY  - 1978///
CY  - London
PB  - Academic Press
N1  - D.M. Spencer: Powdery mildews.  London.  Academic Press, 1978. 0-12-656850-2--(632.45SPE)
ER  -