Biostratigrafiia verkhneǐ permi severovostoka Evropeǐskoǐ chasti SSSR.
Contributors: Variukhina, Liliia Mikhaǐlovna,
Publisher: "Nauka", leningr. otd-nie
Published: 1968
Place of publication: Leningrad
Language: rus
Number of pages: 243
Subjects: Paleontology -- Permian.; Paleontology -- Russia, Northern; Petrology -- Russia, Northern