Cita APA (7th ed.)

Costa, D. L., & Kahn, M. E. (1999). Power couples: Changes in the locational choice of the college educated, 1940-1990. National Bureau of Economic Research.

Cita Chicago (17th ed.)

Costa, Dora L., i Matthew E. Kahn. Power Couples: Changes in the Locational Choice of the College Educated, 1940-1990. Cambridge: National Bureau of Economic Research, 1999.

Cita MLA (9th ed.)

Costa, Dora L., i Matthew E. Kahn. Power Couples: Changes in the Locational Choice of the College Educated, 1940-1990. National Bureau of Economic Research, 1999.