Gaya APA

SCHILLER, B, R. (2003). Student problem set for use with the economy today, ninth ed.: (Ninth Edition). New York: Mc Graw Hill.

Gaya MLA

SCHILLER, Bradley, R. "Student problem set for use with the economy today, ninth ed.:". Ninth Edition New York: Mc Graw Hill, 2003. FAKULTAS EKONOMI.