APA (7th ed.) Citation

Seagal, K. Y. Development of Punctuation theory in First Quarter of 21<sup>st</sup> Century: Main Trends. Tsentr nauchnykh i obrazovatelnykh proektov.

Chicago Style (17th ed.) Citation

Seagal, K. Ya. Development of Punctuation Theory in First Quarter of 21<sup>st</sup> Century: Main Trends. Tsentr nauchnykh i obrazovatelnykh proektov.

MLA (9th ed.) Citation

Seagal, K. Ya. Development of Punctuation Theory in First Quarter of 21<sup>st</sup> Century: Main Trends. Tsentr nauchnykh i obrazovatelnykh proektov.

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