@book{14757,
	author = {Elgohary, H.. and Aziz, Abdalla Abdel. and The Institute of National Planning.},
	title = {A Guide for The Programmers & Operators on The IBM 1620 / },
	publisher = {The Institute of National Planning, },
	year = {1968.},
	series = {مذكرة خارجية},
	address = {Cairo : }
}