TY  - BOOK
AU  - Lytton, R.L.
AU  - McFarland, W.F., coaut.Schafer, D.L., coaut.
ED  - National Research Council. Transportation Research Board (E-.U.A.)
TI  - Flexible pavement design and management : systems approach -implementation / R.L. Lytton , W.F. McFarland and D.L. Scha-fer
CY  - Washington, D.C. : TRB
ER  -