Baily, William Hellier. “Notes on Graptolites and Allied Fossils Occurring in Ireland”. Quarterly Journal of the Geological Society, vol. 25, no. 1-2, pp. 158-62, https://doi.org/10.1144/gsl.jgs.1869.025.01-02.29.
Baily, W. H. (n.d.). Notes on Graptolites and allied Fossils occurring in Ireland. Quarterly Journal of the Geological Society, 25(1-2), 158-162. https://doi.org/10.1144/gsl.jgs.1869.025.01-02.29
Baily, William Hellier. “Notes on Graptolites and Allied Fossils Occurring in Ireland”. Quarterly Journal of the Geological Society 25, no. 1-2 (n.d.): 158-62. https://doi.org/10.1144/gsl.jgs.1869.025.01-02.29.
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Baily WH. Notes on Graptolites and allied Fossils occurring in Ireland. Quarterly Journal of the Geological Society. 25(1-2):158-62.