Cita APA (7th ed.)

Năstăsescu, C., & Oystaeyen, F. v. (1979). Graded and filtered rings and modules. Springer-Verlag.

Cita Chicago (17th ed.)

Năstăsescu, Constantin, i Freddy van Oystaeyen. Graded and Filtered Rings and Modules. Berlín: Springer-Verlag, 1979.

Cita MLA (9th ed.)

Năstăsescu, Constantin, i Freddy van Oystaeyen. Graded and Filtered Rings and Modules. Springer-Verlag, 1979.