el tigi, a. e. d. (1964). determining investment priority ratings. the institute of national planning.
Citação do estilo Chicago (17ª ed.)el tigi, aziz el din. Determining Investment Priority Ratings. cairo: the institute of national planning, 1964.
Citação MLA (9ª ed.)el tigi, aziz el din. Determining Investment Priority Ratings. the institute of national planning, 1964.