frisch, r. (1963). investment requirements under a given time shape of current final demand. National Planning Institute.
Cytowanie według stylu Chicago (wyd. 17)frisch, ragnar. Investment Requirements Under a Given Time Shape of Current Final Demand. cairo: National Planning Institute, 1963.
Cytowanie według stylu MLA (wyd. 9)frisch, ragnar. Investment Requirements Under a Given Time Shape of Current Final Demand. National Planning Institute, 1963.