Παραπομπή σε μορφή APA (7η εκδ.)

National Research Council (U.S.). Highway Research Board. (1957). Pavement condition surveys: Suggested criteria. Highway Research Board.

Παραπομπή σε μορφή Chicago (17η εκδ.)

National Research Council (U.S.). Highway Research Board. Pavement Condition Surveys: Suggested Criteria. Washington, D.C: Highway Research Board, 1957.

Παραπομπή σε μορφή MLA (9th εκδ.)

National Research Council (U.S.). Highway Research Board. Pavement Condition Surveys: Suggested Criteria. Highway Research Board, 1957.