Plant protection and world crop production
Cramer, H.H.
Plant protection and world crop production by H.H. Cramer - Leverkusen Bayer Pflanzenschutz 1967 - 524 p.
(Pflanzenschutz-nachrichten, Bayer, 20/1967, 1)
Plant Protection
Crop Production
632.9 / C 889 P
Plant protection and world crop production by H.H. Cramer - Leverkusen Bayer Pflanzenschutz 1967 - 524 p.
(Pflanzenschutz-nachrichten, Bayer, 20/1967, 1)
Plant Protection
Crop Production
632.9 / C 889 P