APA (7th ed.) Citation

Eggen, D. T., & Pool, M. L. (1948). Radioactive isotopes of Ru and Tc. Physical Review., 74, 57.

Chicago Style (17th ed.) Citation

Eggen, D. T., and M. L. Pool. "Radioactive Isotopes of Ru and Tc." Physical Review. 74 (1948): 57.

MLA (9th ed.) Citation

Eggen, D. T., and M. L. Pool. "Radioactive Isotopes of Ru and Tc." Physical Review., vol. 74, 1948, p. 57.