| 其他書名 | Hearing Before the Committee on Education and Labor, United States Senate Sixty-sixth Congress, First Session, Pursuant to S. Res. 188 ... and S. Res. 202 |
| 出版 | U.S. Government Printing Office, 1919 |
| URL | http://books.google.com.hk/books?id=0T4KAQAAMAAJ&hl=&source=gbs_api |