Cita APA (7th ed.)
Sturm, J., & Wollmershuser, T. (2005). Ifo Survey Data in Business Cycle and Monetary Policy Analysis. Physica-Verlag HD. https://doi.org/10.1007/b138140
Cita Chicago (17th ed.)
Sturm, Jan-Egbert, i Timo Wollmershuser. Ifo Survey Data in Business Cycle and Monetary Policy Analysis. Heidelberg: Physica-Verlag HD, 2005. https://doi.org/10.1007/b138140.
Cita MLA (9th ed.)
Sturm, Jan-Egbert, i Timo Wollmershuser. Ifo Survey Data in Business Cycle and Monetary Policy Analysis. Physica-Verlag HD, 2005. https://doi.org/10.1007/b138140.
Atenció: Aquestes cites poden no estar 100% correctes.