APA (7th ed.) Citation

Hoffmann, B., Bunge, M., & Fernández Zulaica, J. (1984). Einstein. Salvat.

Chicago Style (17th ed.) Citation

Hoffmann, Banesh, Mario Bunge, and Jesús Fernández Zulaica. Einstein. Barcelona: Salvat, 1984.

MLA (9th ed.) Citation

Hoffmann, Banesh, et al. Einstein. Salvat, 1984.