APA
Hansen N. M., International Institute for Applied Systems Analysis, . (1975). A critique of economic regionalizations of the United States. Laxenburg: IIASA.
Chicago
Hansen Niles M, International Institute for Applied Systems Analysis, . 1975. A critique of economic regionalizations of the United States. Laxenburg: IIASA.
Harvard
Hansen N. M., International Institute for Applied Systems Analysis, . (1975). A critique of economic regionalizations of the United States. Laxenburg: IIASA.
MLA
Hansen Niles M, International Institute for Applied Systems Analysis, . A critique of economic regionalizations of the United States. Laxenburg: IIASA. 1975.