Hewings, G. J. (1985). Regional input-output analysis. Sage.
Tohutoru Kātū Chicago (17th ed.)Hewings, Geoffrey J.D. Regional Input-output Analysis. -Beverly Hills, Calif.: Sage, 1985.
Tohutoro MLA (9th ed.)Hewings, Geoffrey J.D. Regional Input-output Analysis. Sage, 1985.
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