1. The taxonomy of some British Aphelinid parasites (Hymenoptera) of scale insects (Coccoidea);Alam;Trans. R. Entomol. Soc. Lond.,1956
2. Entomophagous Insects;Clausen,1940
3. The structure and possible function of the reproductive system in some Eulophidae and Tetracampidae;Copland;Entomologist (Lond.),1971
4. The structure of the female reproductive system in the Eurytomidae (Chalcidoidea : Hymenoptera);Copland,1972
5. The structure of the female reproductive system in the Torymidae (Hymenoptera : Chalcidoidea);Copland;Trans. R. Entomol. Soc. Lond.,1972