APA (7th ed.) Citation

Helmut, W. d. (1998). Current issues in monetary economics. Physica-Verlag.

Chicago Style (17th ed.) Citation

Helmut, Wagner derl. Current Issues in Monetary Economics. New York: Physica-Verlag, 1998.

MLA (9th ed.) Citation

Helmut, Wagner derl. Current Issues in Monetary Economics. Physica-Verlag, 1998.