Gordon, M. A., & Sorochenko, R. L. Radio Recombination Lines: 25 Years of Investigation: Proceedings of the 125th Colloquium of the International Astronomical Union, Held in Puschino, U.S.S.R., September 11-16, 1989. Springer International Publishing.
Cita Chicago (17th ed.)Gordon, Mark A., i R. L. Sorochenko. Radio Recombination Lines: 25 Years of Investigation: Proceedings of the 125th Colloquium of the International Astronomical Union, Held in Puschino, U.S.S.R., September 11-16, 1989. Cham: Springer International Publishing.
Cita MLA (8th ed.)Gordon, Mark A., i R. L. Sorochenko. Radio Recombination Lines: 25 Years of Investigation: Proceedings of the 125th Colloquium of the International Astronomical Union, Held in Puschino, U.S.S.R., September 11-16, 1989. Springer International Publishing.