Cita APA (7th ed.)

(1972). Bilan et perspectives. [S.l.]: [s.n.].

Cita Chicago (17th ed.)

Bilan Et Perspectives. [S.l.]: [s.n.], 1972.

Cita MLA (8th ed.)

Bilan Et Perspectives. [S.l.]: [s.n.], 1972.