Elles, G. L., Shakespear, E. M. R., & Lapworth, C. (1901). A monograph of British graptolites. Printed for the Palæontographical Society.
MLA CitationElles, G. L., et al. A Monograph of British Graptolites. Printed for the Palæontographical Society, 1901.
Warning: These citations have been automatically generated and may not always be 100% accurate..