Herwig, O. (2008). Universal design: Solutions for a barrier-free living. Birkhäuser.
芝加哥风格引文Herwig, Oliver. Universal Design: Solutions for a Barrier-free Living. Basel ; Boston: Birkhäuser, 2008.
MLA引文Herwig, Oliver. Universal Design: Solutions for a Barrier-free Living. Birkhäuser, 2008.
警告:这些引文格式不一定是100%准确.