Gaya APA

Sturm, J., Wollmershäuser, T. (2005). Ifo Survey Data in Business Cycle and Monetary Policy Analysis (1st ed..). Verlag, Heidelberg: Physica-Verlag.

Gaya MLA

Sturm, Jan-Egbert.., Wollmershäuser, Timo.. "Ifo Survey Data in Business Cycle and Monetary Policy Analysis". 1st ed.. Verlag, Heidelberg: Physica-Verlag, 2005. E Book.