Deismireacht APA

 Guell, R. C. (2010).  Issues in economics today.  McGraw-Hill/Irwin.

Trích dẫn kiểu Chicago

 Guell, Robert C.  Issues in Economics Today.  McGraw-Hill/Irwin, 2010.

Deismireacht MLA

 Guell, Robert C.  Issues in Economics Today.  McGraw-Hill/Irwin, 2010.

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