APA   Click to copy
Beaumais, L., Lambert, I., Lindemann, T., Makki, S., Ramel, F., & Sangar, E. Quantifying International Conflicts: Data on War or Data for War. https://link.springer.com/book/10.1007/978-3-031-89331-5: Palgrave Macmillan. https://doi.org/10.1007/978-3-031-89331-5

Chicago/Turabian   Click to copy
Beaumais, Louise, Iris Lambert, Thomas Lindemann, Sami Makki, Frédéric Ramel, and Eric Sangar. Quantifying International Conflicts: Data on War or Data for War. https://link.springer.com/book/10.1007/978-3-031-89331-5: Palgrave Macmillan, n.d.

MLA   Click to copy
Beaumais, Louise, et al. Quantifying International Conflicts: Data on War or Data for War. Palgrave Macmillan, doi:10.1007/978-3-031-89331-5.

@book{beaumais-a,
  title = {Quantifying International Conflicts: Data on War or Data for War},
  address = {https://link.springer.com/book/10.1007/978-3-031-89331-5},
  publisher = {Palgrave Macmillan},
  doi = {10.1007/978-3-031-89331-5},
  author = {Beaumais, Louise and Lambert, Iris and Lindemann, Thomas and Makki, Sami and Ramel, Frédéric and Sangar, Eric}
}