APA ציטוט

Sommer, L. A. (1927). Bands in the Extreme Ultra-Violet Spectrum of a Helium Discharge.

Citação norma Chicago

Sommer, L. A. Bands in the Extreme Ultra-Violet Spectrum of a Helium Discharge. 1927.

ציטוט MLA

Sommer, L. A. Bands in the Extreme Ultra-Violet Spectrum of a Helium Discharge. 1927.