Researches on the flora of the coal-balls from the "Finefrau-Nebenbank" horizon in the province of Limburg (The Netherlands)
By: R. G. Koopmans
Publisher: N. V. Boek- en Handelsdrukkerij v/h Jos. Penners
Published: 1928
Place of publication: Heerlen
Language: eng
Number of pages: 53
Subjects: Paleobotany
Notes: Also published as the author's thesis, Utrecht.

Bibliography: p. [47]-53.