Devonian floras; a study of the origin of Cormophyta Arber, E. A. Newell (Edward Alexander Newell), 1870-1918 creator Arber, Agnes Robertson, 1879-1960 ed. contributor text book Cambridge The University press 1921 1921
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ENG Edited by Mrs. Arber. Devonian Paleobotany QE918 .A7 https://www.biodiversitylibrary.org/bibliography/56742 3434506 21012804 10.5962/bhl.title.56742