TY  - GEN
AU  - Burggraf, Fred, Ed.
AU  - Ward, Elmer M., Ed.
AU  - Orland, Herbert P., Ed.
TI  - Flexible pavement design developments 1961
U1  - 625.7 
PY  - 1961///
CY  - Washington, D. C.
PB  - National Research Council
KW  - Highway-Design And Development
N1  - Publication 861
ER  -