Goldschmidt, P., Kukula, M., Miller, L., & Dunlop, J. (1998). A comparison of the optical properties of radio-loud and radio-quiet quasars. Institute of Physics Publishing.
Lua i Stíl Chicago (17ú heag.)Goldschmidt, P., M. Kukula, L. Miller, agus J. Dunlop. A Comparison of the Optical Properties of Radio-loud and Radio-quiet Quasars. Institute of Physics Publishing, 1998.
Lua MLA (9ú heag.)Goldschmidt, P., et al. A Comparison of the Optical Properties of Radio-loud and Radio-quiet Quasars. Institute of Physics Publishing, 1998.
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