Notes on the animal ecology of Bear Island. Reprinted from the journal of animal ecology, vol. 7, no. 1, pp. 27-52, May, 1938. [With plates, a map and a bibliography.]
Bertram, G. C. L.(George Colin Lawder)
Lack, David Lambert.
Cambridge, 
[1938]
Joint authors: George Colin Lawder Bertram and David Lambert Lack.