共 50 条
- [41] National water resources challenges facing the U.S. army corps of engineers TR News, 2011, (277): : 27 - 28
- [44] Making Sense of Fifty Years of U.S. Peace Corps Service in Cameroon INTERNATIONAL JOURNAL OF AFRICAN HISTORICAL STUDIES, 2014, 47 (02): : 319 - 338
- [49] U.S., industry inching toward more harmony Aviation Week and Space Technology (New York), 1993, 139 (18):