Cita APA (7a ed.)

Koll-Schretzenmayr, M., Keiner, M., & Nussbaumer, G. (2004). The real and virtual worlds of spatial planning. Springer.

Cita Chicago Style (17a ed.)

Koll-Schretzenmayr, Martina, Marco Keiner, y Gustav Nussbaumer. The Real and Virtual Worlds of Spatial Planning. Berlin [etc.]: Springer, 2004.

Cita MLA (9a ed.)

Koll-Schretzenmayr, Martina, et al. The Real and Virtual Worlds of Spatial Planning. Springer, 2004.