el tigi, a. e. d. (1964). determining investment priority ratings. the institute of national planning.
Chicago Style (17th ed.) Citationel tigi, aziz el din. Determining Investment Priority Ratings. cairo: the institute of national planning, 1964.
MLA引文el tigi, aziz el din. Determining Investment Priority Ratings. the institute of national planning, 1964.
警告：這些引文格式不一定是100％准確.