APA (7th ed.) Citation

Petrechenko, I. (2015). O.F. Shafonsky is the founder of the national epidemiology and sanitation.

Chicago Style (17th ed.) Citation

Petrechenko, I. O.F. Shafonsky Is the Founder of the National Epidemiology and Sanitation. 2015.

MLA (8th ed.) Citation

Petrechenko, I. O.F. Shafonsky Is the Founder of the National Epidemiology and Sanitation. 2015.

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