APA (7th ed.) Citation

Burbidge, G. R., & Burbidge, E. M. (1967). Quasi-stellar objects. W.H. Freeman.

Chicago Style (17th ed.) Citation

Burbidge, G. R., and E. Margaret Burbidge. Quasi-stellar Objects. San Francisco: W.H. Freeman, 1967.

MLA (8th ed.) Citation

Burbidge, G. R., and E. Margaret Burbidge. Quasi-stellar Objects. W.H. Freeman, 1967.

Warning: These citations may not always be 100% accurate.