APA (7th ed.) Citation

Koch, A., Fengler, M., & Helmrich, H. (1969). Construcciones de hoteles. Centropress.

Chicago Style (17th ed.) Citation

Koch, Alex., Max Fengler, and Hans Helmrich. Construcciones De Hoteles. Madrid: Centropress, 1969.

MLA (9th ed.) Citation

Koch, Alex., et al. Construcciones De Hoteles. Centropress, 1969.