APA-Zitierstil (7. Ausg.)

Clark, K. B., & Summers, L. H. (1980). Demographic differences in cyclical employment variation. National Bureau of Economic Research.

Chicago-Zitierstil (17. Ausg.)

Clark, Kim B., und Lawrence Henry Summers. Demographic Differences in Cyclical Employment Variation. Cambridge, Mass: National Bureau of Economic Research, 1980.

MLA-Zitierstil (9. Ausg.)

Clark, Kim B., und Lawrence Henry Summers. Demographic Differences in Cyclical Employment Variation. National Bureau of Economic Research, 1980.