Geographical variation of Cottus gobio L. (Pisces, Cottidae) in Northern Europe
By: Lauri Koli
Contributors: Helsingin yliopisto
Publisher: Tekijä
Published: 1969
Place of publication: Hki
Language: eng
Number of pages: 390
Notes: Repr. from Annales zoologici Fennici, 6.

Thesis (doctoral)--University of Helsinki, 1969.