@book{272,
  author = {J.A. Barron and E.H. Harper and G. Keller and R.A. Reynolds and T. Sakai and B.L. Shaffer and R.P. Thompson},
  title = {Biostratigraphic summary},
  year = {1980},
  journal = {Initial Reports of the Deep Sea Drilling Project, 56/57},
  pages = {505-519},
  publisher = {U.S. Government Printing Office},
  url = {https://doi.org/10.2973/dsdp.proc.5657.1980},
  doi = {10.2973/dsdp.proc.5657.1980},
  language = {eng},
}