Title: The hydroids
First published: 1907
Subjects: Albatross (Steamer), Hydromedusae, Albatross Expedition (1904-1905) (uri) http://id.loc.gov/authorities/names/no2016141541 (uri) http://viaf.org/viaf/sourceID/LC|no2016141541
LC classification: QL1 .H375 vol. 35, no. 1