Παραπομπή σε μορφή APA (7η εκδ.)

Schoonbrodt, R. (1996). Perceive conceive achieve: The sustainable city: a European tetralogy. European Foundation of Living and Working Conditions.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Schoonbrodt, Rene. Perceive Conceive Achieve: The Sustainable City: A European Tetralogy. Loughlinstown: European Foundation of Living and Working Conditions, 1996.

Παραπομπή σε μορφή MLA (9th εκδ.)

Schoonbrodt, Rene. Perceive Conceive Achieve: The Sustainable City: A European Tetralogy. European Foundation of Living and Working Conditions, 1996.