Cita APA (7th ed.)

Pooper, K. R. (1978). La connaissance objective. Complexe.

Cita Chicago (17th ed.)

Pooper, Karl R. La Connaissance Objective. Bruselas: Complexe, 1978.

Cita MLA (9th ed.)

Pooper, Karl R. La Connaissance Objective. Complexe, 1978.