D. C. Parman · 3 obras en el catálogoObrasSScrew-worms and other maggots affecting animalsScrew-worms and other maggots affecting animalsAArsenate of lead as an insecticide against the tobacco hornwArsenate of lead as an insecticide against the tobacco hornworms in the dark-tobacco districtTTests of blowfly baits and repellents during 1926Tests of blowfly baits and repellents during 1926
AArsenate of lead as an insecticide against the tobacco hornwArsenate of lead as an insecticide against the tobacco hornworms in the dark-tobacco district