Gaya APA

Schiller, B, R. (2003). Student Problem Set for use with : the economy today, the macro economy today,the micro economy today (Ninth Edition). Hoboken, NJ: Sams.

Gaya MLA

Schiller, Bradley, R. "Student Problem Set for use with : the economy today, the macro economy today,the micro economy today". Ninth Edition Hoboken, NJ: Sams, 2003. Text.