Gripenberg, S. (1934). A study of the sediments of the north Baltic and adjoining seas. [s.n.].
Lua i Stíl Chicago (17ú heag.)Gripenberg, Stina. A Study of the Sediments of the North Baltic and Adjoining Seas. Helsinki: [s.n.], 1934.
Lua MLA (8ú heag.)Gripenberg, Stina. A Study of the Sediments of the North Baltic and Adjoining Seas. [s.n.], 1934.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.