Cita APA (7a ed.)

Richarz, C., Schulz, C., & Zeitler, F. (2007). Energy-efficiency upgrades: Principles, details, examples (1st. ed.). Birkhäuser ; Edition Detail.

Cita Chicago Style (17a ed.)

Richarz, Clemens, Christina Schulz, y Friedemann Zeitler. Energy-efficiency Upgrades: Principles, Details, Examples. 1st. ed. Basel : Munich: Birkhäuser ; Edition Detail, 2007.

Cita MLA (9a ed.)

Richarz, Clemens, et al. Energy-efficiency Upgrades: Principles, Details, Examples. 1st. ed. Birkhäuser ; Edition Detail, 2007.