TY - BOOK AU - Gupta, B.L AU - Gupta, Amit TI - Text book of Road, Bridge & tunnel engineering U1 - 625.7 G977r/ 1991 PY - 1991/// CY - New Delhi PB - Standard publishers KW - Roads KW - Civil engineering KW - Transportation KW - Railway KW - Highway construction KW - Tunnel engineering N1 - includes index ER -