Παραπομπή σε μορφή APA (7η εκδ.)

Λεκάκης, Ι. Ν. (1984). Economics & air quality management in the greater Athens area. Center of Planning and Economic Research.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Λεκάκης, Ιωσήφ Ν. Economics & Air Quality Management in the Greater Athens Area. Athens: Center of Planning and Economic Research, 1984.

Παραπομπή σε μορφή MLA (8th εκδ.)

Λεκάκης, Ιωσήφ Ν. Economics & Air Quality Management in the Greater Athens Area. Center of Planning and Economic Research, 1984.