| ISBN: | 0821359517 |
|---|---|
| 题名: | Competition in international voice communication / Carlo Maria Rossotto ... [et al.]. |
| 索书号: | F631/R838E |
| 出版发行项: | Washington, DC : World Bank, 2004. |
| 载体形态: | ix, 42 p. : ill., col. map ; 26 cm. |
| 丛编说明: | World Bank working paper ; no. 42 |
| 书目附注: | Includes bibliographical references (p. 39-42). |