MLA

Bachmann, Hubert, and Alfred Steinle. Precast Concrete Structures. Berlin: Ernst & Sohn :, 2011.

APA

Bachmann, H., & Steinle, A. (2011). Precast concrete structures. Berlin: Ernst & Sohn :.

Chicago

Bachmann, Hubert, and Alfred Steinle. Precast Concrete Structures. Berlin: Ernst & Sohn :, 2011.