Block signal operation. A practical manual
Saved in:
| OCLC: | 3821632 |
|---|---|
| 主要作者: | |
| 語言: | English |
| 出版: |
New York,
D. Van Nostrand,
1897.
|
| 主題: | |
| 相關項目: | Online version:
Block signal operation. |
| Global Resources Program: | Southeast Asia Materials Project (SEAM) |
| 格式: | Monograph Note that CRL will digitize material from the collection when copyright allows. |
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| 005 | 20240617155944.1 | ||
| 010 | |a 06029478 | ||
| 035 | |a (OCoLC)3821632 | ||
| 040 | |a DLC |c TXA |d COA | ||
| 049 | |a CRLM | ||
| 050 | 0 | |a TF630 |b .D43 | |
| 082 | 0 | 4 | |a 656 |
| 099 | |a A-18155 | ||
| 100 | 1 | |a Derr, William L. | |
| 245 | 1 | 0 | |a Block signal operation. |b A practical manual |c by Wm. L. Derr. |
| 260 | |a New York, |b D. Van Nostrand, |c 1897. | ||
| 300 | |a iii, 270 p. |b illus. |c 18 cm. | ||
| 336 | |a text |b txt |2 rdacontent. | ||
| 337 | |a unmediated |b n |2 rdamedia. | ||
| 338 | |a volume |b nc |2 rdacarrier. | ||
| 500 | |a Includes index. | ||
| 650 | 0 | |a Railroads |x Signaling |x Block system. | |
| 776 | 0 | 8 | |i Online version: |a Derr, William L. |t Block signal operation. |d New York, D. Van Nostrand, 1897 |w (OCoLC)600710595. |
| 907 | |a .b12636538 |b 06-17-24 |c 03-21-93 | ||
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