Text ( visual ) : unmediated Proceedings of the symposium on diffraction gratings and grating instruments, Tokyo, August 31, 1974 / edited by Takeshi Namioka. -- Tokyo, Japan : Spectroscopical Society of Japan , [1974]. -- 92 p. : ill. ; 26 cm. -- "Supplement to the journal of the spectroscopical society"--Cover ; Includes bibliographies. -- (BA68368604) ; https://ci.nii.ac.jp/ncid/BA68368604 Other Title(s): Diffraction gratings and grating instruments. -- Author Heading(s): Symposium on diffraction gratings and grating instruments ; 波岡, 武 ; 日本分光学会. -- Classification(s): LCC : QC417. -- Subject Heading(s): LCSH : Diffraction gratings -- Congresses ; LCSH : Diffraction -- Instruments -- Congresses