Dyfyniad APA

Guell, R. C. (2010). Issues in Economics Today. McGraw-Hill.

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.