APA (7th ed.) Citation

Levchenko, I. (2016). Congresses of naturalists and physicians, as an effective means of educational and promotional work in the second half of XIX – early XX century.

Chicago Style (17th ed.) Citation

Levchenko, I. Congresses of Naturalists and Physicians, as an Effective Means of Educational and Promotional Work in the Second Half of XIX – Early XX Century. 2016.

MLA (8th ed.) Citation

Levchenko, I. Congresses of Naturalists and Physicians, as an Effective Means of Educational and Promotional Work in the Second Half of XIX – Early XX Century. 2016.

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