Kling, B., & Krüger, T. (2013). Signage: Spatial orientation (First edition.). Edition Detail.
芝加哥风格引文Kling, Beate, 与 Torsten Krüger. Signage: Spatial Orientation. First edition. Munich: Edition Detail, 2013.
MLA引文Kling, Beate, 与 Torsten Krüger. Signage: Spatial Orientation. First edition. Edition Detail, 2013.
警告：这些引文格式不一定是100％准确.