Books by Erling Sivertsen
The marine Isopod crustacea of
The marine Isopod crustacea of the Tristan da Cunha Archipelago
A survey of the eared seals (f
A survey of the eared seals (family Otariidae) with remarks on the Antarctic seals collected by M/K "Norvegia" in 1928-1929
Undersøkelser over forholdet m
Undersøkelser over forholdet mellem spiss- og bredhodet ål og deres næring
The Norwegian Zoological Exped
The Norwegian Zoological Expedition to the Galapagos Islands 1925, conducted by Alf Wollebæk