Cita APA (7a ed.)

International Astronomical Union = Union Astronomique Internationales. Symposium Lunteren, The Netherlands, Houziaux, L., & Butler, H. E. (1970). Ultraviolet stellar spectra and related ground-based observations. D. Reidel.

Cita Chicago Style (17a ed.)

International Astronomical Union = Union Astronomique Internationales. Symposium Lunteren, The Netherlands, Leo Houziaux, y H. E. Butler. Ultraviolet Stellar Spectra and Related Ground-based Observations. Dordrecht, Holland: D. Reidel, 1970.

Cita MLA (8a ed.)

International Astronomical Union = Union Astronomique Internationales. Symposium Lunteren, The Netherlands, et al. Ultraviolet Stellar Spectra and Related Ground-based Observations. D. Reidel, 1970.