Παραπομπή σε μορφή APA (7η εκδ.)

National Research Council (U.S.). Transportation Research Board. (1988). State role in public transportation. Transportation Research Board, National Research Council.

Παραπομπή σε μορφή Chicago (17η εκδ.)

National Research Council (U.S.). Transportation Research Board. State Role in Public Transportation. Washington, D.C: Transportation Research Board, National Research Council, 1988.

Παραπομπή σε μορφή MLA (9th εκδ.)

National Research Council (U.S.). Transportation Research Board. State Role in Public Transportation. Transportation Research Board, National Research Council, 1988.