Akademi︠i︡a nauk SSSR. Uralʹskiĭ nauchnyĭ ︠t︡sentr, Sapelʹnikov, V. P., & Chuvashov, B. I. (1981). Biostratigrafi︠i︡a i fauna srednego paleozo︠i︡a Urala. Akademi︠i︡a nauk SSSR, Uralʹskliĭ nauch. ︠t︡sentr.
Chicago Style (17th ed.) CitationAkademi︠i︡a nauk SSSR. Uralʹskiĭ nauchnyĭ ︠t︡sentr, Vadim Petrovich Sapelʹnikov, and Boris Ivanovich Chuvashov. Biostratigrafi︠i︡a I Fauna Srednego Paleozo︠i︡a Urala. Sverdlovsk: Akademi︠i︡a nauk SSSR, Uralʹskliĭ nauch. ︠t︡sentr, 1981.
MLA (8th ed.) CitationAkademi︠i︡a nauk SSSR. Uralʹskiĭ nauchnyĭ ︠t︡sentr, et al. Biostratigrafi︠i︡a I Fauna Srednego Paleozo︠i︡a Urala. Akademi︠i︡a nauk SSSR, Uralʹskliĭ nauch. ︠t︡sentr, 1981.
Warning: These citations may not always be 100% accurate.