APA (7th ed.) Citation

Amster, P., Nápoli, P. D., & Mariani, M. C. An H-system for a revolution surface without boundary. Wiley.

Chicago Style (17th ed.) Citation

Amster, P., P. De Nápoli, and M. C. Mariani. An H-system for a Revolution Surface Without Boundary. Wiley.

MLA (9th ed.) Citation

Amster, P., et al. An H-system for a Revolution Surface Without Boundary. Wiley.