Media type: E-Article Title: 1. Observations on some carboniferous polyzoa Contributor: Etheridge, Robert imprint: Elsevier BV, 1875 Published in: Proceedings of the Geologists' Association Language: English DOI: 10.1016/s0016-7878(75)80075-7 ISSN: 0016-7878 Keywords: Paleontology ; Geology Origination: Footnote: