| 其他書名 | Selected Background Studies Prepared for the United States-Puerto Rico Commission on the Status of Puerto Rico |
| 出版 | U.S. Government Printing Office, 1966 |
| URL | http://books.google.com.hk/books?id=ZndnAAAAMAAJ&hl=&source=gbs_api |
| EBook | FULL_PUBLIC_DOMAIN |