Παραπομπή σε μορφή APA (7η εκδ.)

Πλέσσας, Δ. Ι. (1980). The social costs of air pollution in the greater Athens region. Center of Planning and Economic Research.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Πλέσσας, Δημήτριος Ι. The Social Costs of Air Pollution in the Greater Athens Region. Athens: Center of Planning and Economic Research, 1980.

Παραπομπή σε μορφή MLA (9th εκδ.)

Πλέσσας, Δημήτριος Ι. The Social Costs of Air Pollution in the Greater Athens Region. Center of Planning and Economic Research, 1980.