Servais, T., Li, J., Molyneux, S. G., Rubinstein, C. V., Vecoli, M., & Yan, K. The palaeobiogeographical spread of the acritarch Veryhachium in the Early and Middle Ordovician and its impact on biostratigraphical applications. GFF, 136(1), 234.
Chicago Style (17th ed.) CitationServais, Thomas, Jun Li, Stewart G. Molyneux, Claudia Viviana Rubinstein, Marco Vecoli, and Kui Yan. "The Palaeobiogeographical Spread of the Acritarch Veryhachium in the Early and Middle Ordovician and Its Impact on Biostratigraphical Applications." GFF 136, no. 1 (): 234.
MLA (9th ed.) CitationServais, Thomas, et al. "The Palaeobiogeographical Spread of the Acritarch Veryhachium in the Early and Middle Ordovician and Its Impact on Biostratigraphical Applications." GFF, vol. 136, no. 1, , p. 234.