Gaya APA

Rudnick, J, H, S. (2014). Mc Graw -Hill Education GMAT Premium 2015 (-). United States of America: McGraw-Hill.

Gaya MLA

Rudnick, James, Hasik, Stacey. "Mc Graw -Hill Education GMAT Premium 2015". - United States of America: McGraw-Hill, 2014. Text.