Ilyina, A. P. (1955). Paleogene Mollusks of the Northern Ustjurt Plateau. [Molljuski paleogena Severnogo Ustjurta (cheganskaja i ashcheajrykskaja svity)]. Gostoptekhizdat, Leningrad, 1955. 161 pp. (in Russian).
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Ilyina, A. P.
1955
Paleogene Mollusks of the Northern Ustjurt Plateau. [Molljuski paleogena Severnogo Ustjurta (cheganskaja i ashcheajrykskaja svity)]