Cita APA (7a ed.)

Wolters, A. M. (1972). Notes on the structure of Enneadas II,9. [s.n.].

Cita Chicago Style (17a ed.)

Wolters, Albert Marten. Notes on the Structure of Enneadas II,9. [S.l.]: [s.n.], 1972.

Cita MLA (9a ed.)

Wolters, Albert Marten. Notes on the Structure of Enneadas II,9. [s.n.], 1972.