When using this data, please cite the original publication:

Additionally, you should cite the record:

@misc{hepdata.75411, author = "Wallraff, Wolfgang and others", title = "{Measurement of the polarization of the backscattered neutron from the reaction gamma p -> pi n in the region of the second resonance}", howpublished = "{HEPData (collection)}", year = 1970, note = "\url{https://doi.org/10.17182/hepdata.75411}" }

or, if you prefer, a specific version of the record:

@misc{hepdata.75411.v1, author = "Wallraff, Wolfgang and others", title = "{Measurement of the polarization of the backscattered neutron from the reaction gamma p -> pi n in the region of the second resonance (Version 1)}", howpublished = "{HEPData (collection)}", year = 1970, note = "\url{https://doi.org/10.17182/hepdata.75411.v1}" }

You can also cite this table directly.

@misc{hepdata.75411.v1/t1, author = "Wallraff, Wolfgang and others", title = "{``Table 1'' of ``Measurement of the polarization of the backscattered neutron from the reaction gamma p -> pi n in the region of the second resonance'' (Version 1)}", howpublished = "{HEPData (dataset)}", year = 1970, note = "\url{https://doi.org/10.17182/hepdata.75411.v1/t1}" }