TY  - GEN
AU  - Cramer,H.H.
TI  - Plant protection and world crop production
PY  - 1967///
CY  - Leverkusen
PB  - Bayer Pflanzenschutz
KW  - Plant Protection
KW  - Crop Production
N1  - (Pflanzenschutz-nachrichten, Bayer, 20/1967, 1)
ER  -