The sponges of the Bay of Naples : porifera incalcaria with analyses of genera and studies in the variations of species /
Vosmaer, Gualtherus Carel Jacob, 1854-1916.
The sponges of the Bay of Naples : porifera incalcaria with analyses of genera and studies in the variations of species / by G. C. J. Vosmaer ; edited by C. S. Vosmaer-Roell and M. Burton. - The Hague : Martinus Nijhoff, 1933-1935. - 3 v. : ill. ; 32 cm.
The sponges of the Bay of Naples : porifera incalcaria with analyses of genera and studies in the variations of species / by G. C. J. Vosmaer ; edited by C. S. Vosmaer-Roell and M. Burton. - The Hague : Martinus Nijhoff, 1933-1935. - 3 v. : ill. ; 32 cm.