APA (7th ed.) Citation

Gavin de Beer, s., & Perez Ledesma, M. Rousseau (1a. ed.). Salvat.

Chicago Style (17th ed.) Citation

Gavin de Beer, sir, and Manuel Perez Ledesma. Rousseau. 1a. ed. Barcelona: Salvat.

MLA (9th ed.) Citation

Gavin de Beer, sir, and Manuel Perez Ledesma. Rousseau. 1a. ed. Salvat.