TY - BOOK ID - 137752658 TI - Accomplishments in freeway operations PY - 1971 SN - 0309019834 PB - Washington (D.C.): National academy of sciences DB - UniCat KW - Express highways KW - Congresses UR - https://www.unicat.be/uniCat?func=search&query=sysid:137752658 AB - ER -