The Social wasps of the Americas : excluding the Vespinae /

por Richards, Owain Westmacott n. 1901-, Richards, Owain Westmacott n. 1901-
Publicado 1978

Imm's general textbook of entomology /

por Imms, Augustus Daniel 1880-1949, Imms, Augustus Daniel 1880-1949, Richards, Owain Westmacott n. 1901-, Davies, R. G.
Publicado 1977

Imm's outlines of entomology /

por Imms, Augustus Daniel 1880-1949, Imms, Augustus Daniel 1880-1949, Richards, Owain Westmacott n. 1901-, Davies, Richard Gareth
Publicado 1978