D M Ladd

Compaction requirements for soil components of flexible airfield pavements

R G Ahlvin, D N Brown, D M Ladd, 1959 .

PAVEMENT DESIGN CRITERIA FOR HEAVY-LOAD VEHICLES

D M Ladd, V C Barber, 1983 .

Pavement Design for Various Levels of Traffic Volume

D M Ladd, D L Cooksey, 1971 .