1. Acworth , B. 1930 This Bondage: London
2. The Birds of Latium, Italy. Compiled from notes and letters of the late C. J. Alexander.;Alexander;Auk,1927
3. Note on “The Swallow mortality in Central Europe in September, 1931;Alexander;J. Anim. Ecology,1933
4. Bird migration from the point, of view of light and length of day changes;Allard;Amer. Nat.,1918
5. Migration routes of the Arctic Tern (Sterna paradisea Brünnich);Acstin;Bull. Northeast. Bird-Banding Ass.,1928