abdel karim, a. i. (1964). difference equations. the institute of national planning.
Chicago Style (17th ed.) Citationabdel karim, abbas i. Difference Equations. cairo: the institute of national planning, 1964.
MLA (9th ed.) Citationabdel karim, abbas i. Difference Equations. the institute of national planning, 1964.
Warning: These citations may not always be 100% accurate.