00604nam a2200169   450000500170000008200080001710000270002524500650005226000480011730000270016550400250019265000230021770000270024094200110026795201390027899900170041720260225063512.0  bARA  aArain, Ghulam Shabbir.  aSignalling and interlocking systems /cGhulam Shabbir Arain.  aMUET, Jamshoro :bCivil Engineering,c1983.  a120p. :bill. ; 30 cm.  aIncludes References.  aCivil Engineering.  aChachar, Ghulam Akbar.  cTHESES  001040708CEaMRDCbMRDCd2026-02-20i20-02-26-MAHl0o625.16pTH-11526r2026-02-20 04:27:21tCE-00399w2026-02-20yTHESESzBachelor  c53809d53809