APA (7th ed.) Citation

Grinin, L., & Grinin, A. Deepening of the World-System Crisis. University Library System, University of Pittsburgh.

Chicago Style (17th ed.) Citation

Grinin, Leonid, and Anton Grinin. Deepening of the World-System Crisis. University Library System, University of Pittsburgh.

MLA (9th ed.) Citation

Grinin, Leonid, and Anton Grinin. Deepening of the World-System Crisis. University Library System, University of Pittsburgh.

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