TY - BOOK ID - 145135193 TI - Elements of systems analysis. AU - De Neufville, Richard AU - Stafford, Joseph H. PY - 1967 PB - Cambridge : MIT, DB - UniCat KW - Street-railroads. KW - Tramways KW - Accidents KW - Accidents KW - Prevention. KW - Prévention UR - https://www.unicat.be/uniCat?func=search&query=sysid:145135193 AB - ER -