Pycnogonidea /
Sars, G. O.
Pycnogonidea / by G. O. Sars. - Christiania : Grøndahl, 1891. - 163 p. : ill. ; 37 cm. - The Norwegian North-Atlantic expedition, 1876-1878 = Den Norske Nordhavs-expedition, 1876-1878 ; Zoology = Zoologi .
Pycnogonidea / by G. O. Sars. - Christiania : Grøndahl, 1891. - 163 p. : ill. ; 37 cm. - The Norwegian North-Atlantic expedition, 1876-1878 = Den Norske Nordhavs-expedition, 1876-1878 ; Zoology = Zoologi .