Materials for the knowledge of Onega Lake and Obnezhsky Krai, mainly in the zoological sense / KF Kessler. - St. Petersburg: printing house of the Imperial Academy of Sciences, 1868. - 148 p. : ill., maps. ; 30. - On the tit. L.: Appl. to the works of the First Congress of Russian Naturalists
1. Territory of Russia (collection). 2. Ichthyological research - Onega Lake (North-West of the European part of the Russian Federation) - 19. ..
Source of electronic copy: NB Rep. Karelia Location on the secret of the original: НБ Респ. Karelia