Cita APA (7a ed.)

Houziaux, L., & Butler, H. (1970). Ultraviolet Stellar Sectra and Related Ground-Based Observations. Reidel Publishing Company.

Cita Chicago Style (17a ed.)

Houziaux, L., y H.E Butler. Ultraviolet Stellar Sectra and Related Ground-Based Observations. Dordrecht: Reidel Publishing Company, 1970.

Cita MLA (9a ed.)

Houziaux, L., y H.E Butler. Ultraviolet Stellar Sectra and Related Ground-Based Observations. Reidel Publishing Company, 1970.