Gorjansky, V. Y. (1969). Bezzamkovye brakhiopody kembriiskikh i ordovikskikh otlozhenii severo-zapada russkoi platformy. Ministerstvo Geologii RSFSR Severo-Zapadnoe Territorialnoe, Geologicheskoe Upravlenie, St. Petersburg, 173 pp.
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Gorjansky, V. Y.
1969
Bezzamkovye brakhiopody kembriiskikh i ordovikskikh otlozhenii severo-zapada russkoi platformy. Ministerstvo Geologii RSFSR Severo-Zapadnoe Territorialnoe, Geologicheskoe Upravlenie, St. Petersburg, 173 pp.