el tigi, a. e. d. (1964). determining investment priority ratings. the institute of national planning.
Cita Chicago (17th ed.)el tigi, aziz el din. Determining Investment Priority Ratings. cairo: the institute of national planning, 1964.
Cita MLA (9th ed.)el tigi, aziz el din. Determining Investment Priority Ratings. the institute of national planning, 1964.
Atenció: Aquestes cites poden no estar 100% correctes.