APA (7th ed.) Citation

Koch, J., & Camðn Aznar, J. (1930). Historia de Roma. Labor.

Chicago Style (17th ed.) Citation

Koch, Julius, and JosØ Camðn Aznar. Historia De Roma. Barcelona ; Buenos Aires: Labor, 1930.

MLA (9th ed.) Citation

Koch, Julius, and JosØ Camðn Aznar. Historia De Roma. Labor, 1930.

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