Dyfyniad APA

Schiller, B. R., & Gebhardt, K. (2019). The economy today (15e [edition].). McGraw-Hill Education.

Dyfyniad Arddull Chicago

Schiller, Bradley R., and Karen Gebhardt. The Economy Today. 15e [edition]. New York, NY: McGraw-Hill Education, 2019.

Dyfyniad MLA

Schiller, Bradley R., and Karen Gebhardt. The Economy Today. 15e [edition]. McGraw-Hill Education, 2019.

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