APA (7th ed.) Citation

Shpak, N. O., Kirianaki, N. V., & Yurish, S. Y. Precise Methods for Measurement of Frequency Ratio.

Chicago Style (17th ed.) Citation

Shpak, N. O., Nikolay V. Kirianaki, and Sergey Y. Yurish. Precise Methods for Measurement of Frequency Ratio.

MLA (9th ed.) Citation

Shpak, N. O., et al. Precise Methods for Measurement of Frequency Ratio.