eleish, g. (1962). an introduction to the input- output model. the institute of national planning.
Chicago-referens (17:e uppl.)eleish, g. An Introduction to the Input- Output Model. cairo: the institute of national planning, 1962.
MLA-referens (9:e uppl.)eleish, g. An Introduction to the Input- Output Model. the institute of national planning, 1962.