Παραπομπή σε μορφή APA (7η εκδ.)

SCHOON, J. Geometric Design Projects For Higways: An introduction. American Society of Civil Engineers.

Παραπομπή σε μορφή Chicago (17η εκδ.)

SCHOON, J.G. Geometric Design Projects For Higways: An Introduction. American Society of Civil Engineers.

Παραπομπή σε μορφή MLA (8th εκδ.)

SCHOON, J.G. Geometric Design Projects For Higways: An Introduction. American Society of Civil Engineers.