Environmental impact : putting pesticides into perspective / Ian Bryce-Graham.

London : Shell International Petroleum Company Ltd., 1991.

9 pages : illustrations ; 30 cm.

"Based on the Bawden Lecture presented at the British Crop Protection Conference, Brighton, 1991." -- pastedown.

Originally part of the BIODOC collection. Copy 1. Supplier/Donor: Directorate-General for Research and Innovation of the European Commission.