TY - BOOK ID - 125330232 TI - Labor and material requirements for sewer works construction PY - 1979 PB - Washington, D.C. U.S. Department of Labor, Bureau of Labor Statistics DB - UniCat KW - Sewerage KW - Sewerage KW - Costs. KW - Costs. UR - https://www.unicat.be/uniCat?func=search&query=sysid:125330232 AB - ER -