A device for automatic photoelectric control of the analytical gap for emission spectrographs /
Main Authors: | , , |
---|---|
Format: | Government Document eBook |
Language: | English |
Published: |
[Reston, Virginia] :
United States Department of the Interior, Geological Survey,
1977.
|
Series: | Geological Survey circular ;
748. |
Subjects: | |
Online Access: | https://purl.fdlp.gov/GPO/gpo113682 |
Internet
https://purl.fdlp.gov/GPO/gpo113682Available Online
Call Number: |
I 19.4/2:748 |
|
---|---|---|
Call Number | Status | Get It |
I 19.4/2:748 | Available |