APA (7th ed.) Citation

Biquard, P., Langevin, P., & Bernal, J. D. Langevin. Seghers (Paris).

Chicago Style (17th ed.) Citation

Biquard, Pierre, Paul Langevin, and John Desmond Bernal. Langevin. Seghers (Paris).

MLA (8th ed.) Citation

Biquard, Pierre, et al. Langevin. Seghers (Paris).