A Survey of the Eared Seals (family Otariidae) with Remarks on the Antartic Seals Collected by M/K "Norvegia" in 1928-1929
Sivertsen, Erling
A Survey of the Eared Seals (family Otariidae) with Remarks on the Antartic Seals Collected by M/K "Norvegia" in 1928-1929 - Oslo : Jacob Dybward, 1954. - 76 p. : láms. ; 14 cm. - Det Norske Videnskps Akademi i Oslo ; 36 .
A Survey of the Eared Seals (family Otariidae) with Remarks on the Antartic Seals Collected by M/K "Norvegia" in 1928-1929 - Oslo : Jacob Dybward, 1954. - 76 p. : láms. ; 14 cm. - Det Norske Videnskps Akademi i Oslo ; 36 .