APA (7th ed.) Citation

Heffer, J., Serman, W., Brunet, J., & Launay, M. (1992). Historia contemporánea. Akal.

Chicago Style (17th ed.) Citation

Heffer, Jean, William Serman, Jean-Paul Brunet, and Michel Launay. Historia Contemporánea. Madrid, España: Akal, 1992.

MLA (9th ed.) Citation

Heffer, Jean, et al. Historia Contemporánea. Akal, 1992.