| 其他書名 | A Practical Reference Book and Guide for Electricians, Wiremen, Engineers, Contractors, Architects, and Others Interested in Standard Telephone Practice... |
| 出版 | N. W. Henley publishing Company, 1908 |
| URL | http://books.google.com.hk/books?id=pp1RAAAAMAAJ&hl=&source=gbs_api |