Mysteries of the deeps : from the depths of Lake Baikal to the ocean floor / Bogdanov U. ...[et al.]. - Moscow : Progress Publishers, c1989. - 383 p. : ill. (some col.) ; 25 cm. Translated from the Russian. ISBN: 5010011506 Subjects--Topical Terms: Oceanography.Underwater exploration. Dewey Class. No.: 551.4608 / MYS