| 其他書名 | Hearings Before the Committee on Immigration and Naturalization, House of Representatives, Sixty-seventh Congress, First Session ... May 26, 1921. Statements of Richard K. Campbell [and] Maud Wood Park |
| 出版 | U.S. Government Printing Office, 1921 |
| URL | http://books.google.com.hk/books?id=cic8swEACAAJ&hl=&source=gbs_api |