American Institute of Physics, S. R. C., Mulvey, P. J., Nicholson, S., & Pold, J. (2021). Trends in Physics PhDs: Results from the 2019 Survey of Enrollments and Degrees and the Degree Recipient Follow-Up Survey for the Classes of 2017 and 2018. Focus On. AIP Statistical Research Center.
Παραπομπή σε μορφή Chicago (17η εκδ.)American Institute of Physics, Statistical Research Center, Patrick J. Mulvey, Starr Nicholson, και Jack Pold. "Trends in Physics PhDs: Results from the 2019 Survey of Enrollments and Degrees and the Degree Recipient Follow-Up Survey for the Classes of 2017 and 2018. Focus On." AIP Statistical Research Center 2021.
Παραπομπή σε μορφή MLA (9th εκδ.)American Institute of Physics, Statistical Research Center, et al. "Trends in Physics PhDs: Results from the 2019 Survey of Enrollments and Degrees and the Degree Recipient Follow-Up Survey for the Classes of 2017 and 2018. Focus On." AIP Statistical Research Center, 2021.