A monographic revision of the African land snails of the genus Limicolaria Schumacher (Mollusca, Achatinidae)Terence E. Crowley · First published 1970Open the Tome
A monograph of the African land snails of the genus Burtoa (Mollusca-Achatinidae)Terence E. Crowley, Thomas Pain · First published 1959Open the Tome
