Fresh - water sponges in the collection the united states national museum part 2 specimens from North and south america
- goverment printing office washington 1909
- 4p. : 24 cm
- Vol 37 .
ANNANDALE , NELSON Fresh - water sponges in the collection the united states national museum part 2 specimens from North and south America 2 c 6 vol 37 1909 science