Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (8a ed.)

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