Pesticides : Report of inspections 1967, 1968
Hanna, J.G.
Pesticides : Report of inspections 1967, 1968 - New Haven 1969 - 1-19 p. - Connecticut Agricultural Exper .
Pesticides : Report of inspections 1967, 1968 - New Haven 1969 - 1-19 p. - Connecticut Agricultural Exper .