APA (7th ed.) Citation

Editorial, a. Congratulations to Professor Andrey S. Petrukhin on his 80<sup>th</sup> birthday! IRBIS LLC.

Chicago Style (17th ed.) Citation

Editorial, article. Congratulations to Professor Andrey S. Petrukhin on His 80<sup>th</sup> Birthday! IRBIS LLC.

MLA (9th ed.) Citation

Editorial, article. Congratulations to Professor Andrey S. Petrukhin on His 80<sup>th</sup> Birthday! IRBIS LLC.

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