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Den Geologiske Undersogelse, Bergen, 16D. GSGS4282.
Den Geologiske Undersogelse, Egersund, 3D. GSGS4282.
Den Geologiske Undersogelse, Haus, 22B. GSGS4282.
Holonda. NGU.
Oslo. 1952. Geologisk Kart Over Oslo of Omegn (geological map of Oslo & Region)
The Geology of Parts of Southern Norway: Duplicate Set of Maps, Sections and Tables, 1934. Geologists' Assoc.