APA (7th ed.) Citation

Levchenko, I. (2017). Natural Science members, physical-chemical and mathematical society of Kharkiv.

Chicago Style (17th ed.) Citation

Levchenko, I. Natural Science Members, Physical-chemical and Mathematical Society of Kharkiv. 2017.

MLA (8th ed.) Citation

Levchenko, I. Natural Science Members, Physical-chemical and Mathematical Society of Kharkiv. 2017.

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