Cover image for A device for automatic photoelectric control of the analytical gap for emission spectrographs
Title:
A device for automatic photoelectric control of the analytical gap for emission spectrographs
Author:
Dietrich, John A.
Personal Author:
Publication Information:
[Reston, Va.] : U.S. Dept. of the Interior, Geological Survey ; Arlington, Va. : Branch of Distribution, U.S. Geological Survey, 1977.
Physical Description:
iii, 5 pages : illustrations, diagrams ; 27 cm.
Language:
English
Added Corporate Author:
Format :
Book