When using this data, please cite the original publication:

Additionally, you should cite the record:

@misc{hepdata.19052, author = "{Serpukhov-Saclay-Dubna-Moscow Collaboration}", title = "{Polarization in Elastic Scattering of pi+, K+ Mesons and Protons on Protons at 45-GeV/c}", howpublished = "{HEPData (collection)}", year = 1978, note = "\url{https://doi.org/10.17182/hepdata.19052}" }

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

@misc{hepdata.19052.v1, author = "{Serpukhov-Saclay-Dubna-Moscow Collaboration}", title = "{Polarization in Elastic Scattering of pi+, K+ Mesons and Protons on Protons at 45-GeV/c (Version 1)}", howpublished = "{HEPData (collection)}", year = 1978, note = "\url{https://doi.org/10.17182/hepdata.19052.v1}" }

You can also cite this table directly.

@misc{hepdata.19052.v1/t1, author = "{Serpukhov-Saclay-Dubna-Moscow Collaboration}", title = "{``Table 1'' of ``Polarization in Elastic Scattering of pi+, K+ Mesons and Protons on Protons at 45-GeV/c'' (Version 1)}", howpublished = "{HEPData (dataset)}", year = 1978, note = "\url{https://doi.org/10.17182/hepdata.19052.v1/t1}" }