Title: Biblio RTF Export
Author: Biblio 7.x

A. D.  Middleton, ?The ecology of the American grey squirrel (Sciurus carolinensis Gmelin) in the British Isles.?, Proceedings of the Zoological Society of London (1930): 809-843., 1930.

A. D.  Middleton, ?The grey squirrel.?, London, p.68., 1931.