Gaya APA

Schiller, B, R. (2003). Student problem set for use with the economic today, the macro economy today, the micro economic today (9). New York: McGraw-Hill - Irwin.

Gaya MLA

Schiller, Bradley, R.. "Student problem set for use with the economic today, the macro economy today, the micro economic today". 9 New York: McGraw-Hill - Irwin, 2003. Text.