Cita APA (7th ed.)

Hewings, G. J. (1985). Regional input-output analysis. Sage.

Cita Chicago (17th ed.)

Hewings, Geoffrey J.D. Regional Input-output Analysis. -Beverly Hills, Calif.: Sage, 1985.

Cita MLA (9th ed.)

Hewings, Geoffrey J.D. Regional Input-output Analysis. Sage, 1985.