Nudibranchiate gasteropoda /
Bergh, R.
Nudibranchiate gasteropoda / by R. Bergh. - Copenhagen : Bianco Luno, 1900. - 49 p. : ill. ; 32 cm. - The Danish ingolf-expedition ; 2.3 .
Nudibranchiate gasteropoda / by R. Bergh. - Copenhagen : Bianco Luno, 1900. - 49 p. : ill. ; 32 cm. - The Danish ingolf-expedition ; 2.3 .