TY - BOOK ID - 135225078 TI - Track maintenance and classification yards PY - 1985 SN - 0309039215 PB - Washington (D.C.): National research council. Transportation research board DB - UniCat KW - Railroad tracks KW - Railroad yards KW - Maintenance and repair UR - https://www.unicat.be/uniCat?func=search&query=sysid:135225078 AB - ER -