APA
McGraw-Hill Irwin, McConnell. R. Campbell, Brue. L. Stanley & Flynn. M. Sean. (2009). Economy Update: 2009. USA: McGraw-Hill Irwin.
Chicago
McGraw-Hill Irwin, McConnell. R. Campbell, Brue. L. Stanley and Flynn. M. Sean. 2009. Economy Update: 2009. USA: McGraw-Hill Irwin.
Harvard
McGraw-Hill Irwin, McConnell. R. Campbell, Brue. L. Stanley and Flynn. M. Sean. (2009). Economy Update: 2009. USA: McGraw-Hill Irwin.
MLA
McGraw-Hill Irwin, McConnell. R. Campbell, Brue. L. Stanley and Flynn. M. Sean. Economy Update: 2009. USA: McGraw-Hill Irwin. 2009.