Institut geologii i geofiziki (Akademi︠i︡a nauk SSSR), Sokolov, B. S., & Elkin, E. A. (1976). Dokembriĭ i paleozoĭ Sibiri i smezhnykh regionov: Paleontologi︠i︡a, biostratigrafi︠i︡a, paleobiogeografi︠i︡a : sbornik nauchnykh trudov. Institut.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিInstitut geologii i geofiziki (Akademi︠i︡a nauk SSSR), Boris Sergeevich Sokolov, এবং Evgeniĭ Aleksandrovich Elkin. Dokembriĭ I Paleozoĭ Sibiri I Smezhnykh Regionov: Paleontologi︠i︡a, Biostratigrafi︠i︡a, Paleobiogeografi︠i︡a : Sbornik Nauchnykh Trudov. Novosibirsk: Institut, 1976.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিInstitut geologii i geofiziki (Akademi︠i︡a nauk SSSR), et al. Dokembriĭ I Paleozoĭ Sibiri I Smezhnykh Regionov: Paleontologi︠i︡a, Biostratigrafi︠i︡a, Paleobiogeografi︠i︡a : Sbornik Nauchnykh Trudov. Institut, 1976.