著者: Paul Ayris, Jean-Yves Berthou, Rachel Bruce, Stefanie Lindstaedt, Anna Monreale, Barend Mons, Yasuhiro Murayama, Caj Södergård, Klaus Tochtermann, Ross Wilkinson - ZBW – Leibniz-Informationszentrum Wirtschaft 2016 被引用: 77
though some operators, phone boxes or hotels may charge you).
