APA (7th ed.) Citation

Blum, J., Cameron, R. E., & Barnes, T. G. (1966). The European world: A history. Little, Brown.

Chicago Style (17th ed.) Citation

Blum, Jerome, Rondo E. Cameron, and Thomas G. Barnes. The European World: A History. Boston: Little, Brown, 1966.

MLA (9th ed.) Citation

Blum, Jerome, et al. The European World: A History. Little, Brown, 1966.