APA (7th ed.) Citation

Photoelectric Spectrometry Group. (1949). Photoelectric Spectrometry Group bulletin. [The Group].

Chicago Style (17th ed.) Citation

Photoelectric Spectrometry Group. Photoelectric Spectrometry Group Bulletin. [Cambridge, England]: [The Group], 1949.

MLA (8th ed.) Citation

Photoelectric Spectrometry Group. Photoelectric Spectrometry Group Bulletin. [The Group], 1949.

Warning: These citations may not always be 100% accurate.