The pupal cell of the red bollworm /

by Choyce, M. A.
Published 1961

Pests and disease control of cotton in Northern Nigeria /

by Choyce, M. A.
Published 1966

Observations on Carcella Evolans (Wied.) (Diptera, Tachinidae), A parasite of diparopsis wafersi (roths) (Lepidoptera, noctuidae), in Northern Nigeria /

by Reed, W.
Published 1962