His The design and performance of road pavements, c1991: CIP t.p. (Dr. David Croney, OBE, FICE, FIHT, David Croney Assoc., geotechnical and highway engineering consultants) data sheet (b. 7/8/15) LC data base, 10-18-90 (hdg.: Croney, D.; usage: David Croney)
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