CIRET Conference Zurich, Switzerland, Oppenländer, K. H., & Poser, G. (1988). Contributions of business cycle surveys to empirical economics: Papers presented at the 18th CIRET Conference : proceedings, Zurich, 1987. Avebury.
Chicago-viite (17. p.)CIRET Conference Zurich, Switzerland, Karl Heinrich Oppenländer, ja Günter Poser. Contributions of Business Cycle Surveys to Empirical Economics: Papers Presented at the 18th CIRET Conference : Proceedings, Zurich, 1987. Aldershot, Hants, England ; Brookfield, Vt., USA: Avebury, 1988.
MLA-viite (8. p.)CIRET Conference Zurich, Switzerland, et al. Contributions of Business Cycle Surveys to Empirical Economics: Papers Presented at the 18th CIRET Conference : Proceedings, Zurich, 1987. Avebury, 1988.
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