@book{577803,
	author = {MUHAMMAD WASEEM, MUHAMMAD EHSAN KHAN, ADIL YAQUB and Lt Col Nasir Rashid},
	title = {PR-SOF-1412-PLC CONVEYOR CONTROL AND ELEVATOR SYSTEMS},
	publisher = {NUST COLLEGE OF EME},
	year = {2015},
	address = {ISLAMABAD}
}