Spiegelman, R. G. (1968). A study of industry location using multiple regression techniques. Economic Research Service, United States Department of Agriculture.
Citazione stile Chigago Style (17a edizione)Spiegelman, Robert G. A Study of Industry Location Using Multiple Regression Techniques. Washington, D.C: Economic Research Service, United States Department of Agriculture, 1968.
Citatione MLA (9a ed.)Spiegelman, Robert G. A Study of Industry Location Using Multiple Regression Techniques. Economic Research Service, United States Department of Agriculture, 1968.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.