Bear Island murre colony : dense populations seem to be required for optimum reproduction in these alcids

Eugene Eisenmann
Bok · Språk ikke angitt · 1963

Utgitt	1963
Omfang	S.26-29 : fig.
Opplysninger	Xeroxkopi fra: Natural History, B.72, No.1, 1963
Emner	svalbard bjørnøya birds ornithology