APA (7th ed.) Citation

Pylypenko, M. M., & Drobyshevskaya, A. A. (2013). Purification of hafnium from oxygen and nitrogen.

Chicago Style (17th ed.) Citation

Pylypenko, M. M., and A. A. Drobyshevskaya. Purification of Hafnium from Oxygen and Nitrogen. 2013.

MLA (8th ed.) Citation

Pylypenko, M. M., and A. A. Drobyshevskaya. Purification of Hafnium from Oxygen and Nitrogen. 2013.

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