Kvaliashvili, G.A. (1962). Onkoforovyy (rzegakiyevyy) gorizont Yevrazii [Oncophoran (Rzehakian) horizon of Eurasia]. Izdatel'stvo Akademii nauk Gruzinskoy SSR, Tbilisi, 231 pp.
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Kvaliashvili, G.A.
1962
Onkoforovyy (rzegakiyevyy) gorizont Yevrazii [Oncophoran (Rzehakian) horizon of Eurasia]
Izdatel’stvo Akademii nauk Gruzinskoy SSR, Tbilisi, 231 pp.