TY - BOOK A1 - / American society of civil engineers TI - Standard practice for direct design of precast concrete box sections for jacking in trenchless construction PB - کتابخانه مرکزی، مرکز اسناد و تامین منابع علمی دانشگاه صنعتی سهند SN - 93540518 UR /book/93540518/Standard-practice-for-direct-design-of-precast-con/ ER -