Institut khimii i tekhnologii redkikh ėlementov i mineralʹnogo syrʹ︠i︡a (Akademi︠i︡a nauk SSSR), Sklokin, L. I., & Freĭdin, B. M. (1980). Fiziko-khimicheskie issledovani︠i︡a tekhnologicheskikh pro︠t︡sessov pererabotki mineralʹnogo syrʹ︠i︡a. Kolʹskiĭ filial AN SSSR.
Παραπομπή σε μορφή Chicago (17η εκδ.)Institut khimii i tekhnologii redkikh ėlementov i mineralʹnogo syrʹ︠i︡a (Akademi︠i︡a nauk SSSR), L. I. Sklokin, και B. M. Freĭdin. Fiziko-khimicheskie Issledovani︠i︡a Tekhnologicheskikh Pro︠t︡sessov Pererabotki Mineralʹnogo Syrʹ︠i︡a. Apatity: Kolʹskiĭ filial AN SSSR, 1980.
Παραπομπή σε μορφή MLA (8th εκδ.)Institut khimii i tekhnologii redkikh ėlementov i mineralʹnogo syrʹ︠i︡a (Akademi︠i︡a nauk SSSR), et al. Fiziko-khimicheskie Issledovani︠i︡a Tekhnologicheskikh Pro︠t︡sessov Pererabotki Mineralʹnogo Syrʹ︠i︡a. Kolʹskiĭ filial AN SSSR, 1980.