TY  - BOOK
AU  - Behrendi, S. and Hanf, M.
TI  - Grass weeds in world agriculture identification in the flowerless state
AV  - SB 611.B4 1979 
PY  - 1979///
CY  - Ludwigshafen
PB  - Basf Aetienge Seellschaft
ER  -