APA (7th ed.) Citation

Koch, J., & Camón Aznar, J. (1942). Historia de Roma (2a ed.). Labor.

Chicago Style (17th ed.) Citation

Koch, Julius, and José Camón Aznar. Historia De Roma. 2a ed. Barcelona: Labor, 1942.

MLA (9th ed.) Citation

Koch, Julius, and José Camón Aznar. Historia De Roma. 2a ed. Labor, 1942.

Warning: These citations may not always be 100% accurate.