APA
Christl J., . (1992). The Unemployment/Vacany Curve: Theoretical Foundation and Empirical Relevance. Heidelberg: Physica-Verlag.
Chicago
Christl Josef, . 1992. The Unemployment/Vacany Curve: Theoretical Foundation and Empirical Relevance. Heidelberg: Physica-Verlag.
Harvard
Christl J., . (1992). The Unemployment/Vacany Curve: Theoretical Foundation and Empirical Relevance. Heidelberg: Physica-Verlag.
MLA
Christl Josef, . The Unemployment/Vacany Curve: Theoretical Foundation and Empirical Relevance. Heidelberg: Physica-Verlag. 1992.