Beiträge zur Steinkohlen-Flora der arctischen Zone
By: von Oswald Heer.
Series: Kongl. Svenska vetenskaps-akademiens handlingar -- Bd. 12, no. 3.
Publisher: P.A. Norstedt & Söner
Published: 1874
Place of publication: Stockholm
Language: ger
Number of pages: 11
Subjects: Paleobotany -- Arctic regions.; Paleobotany -- Paleozoic.