Cita APA (7th ed.)

Howitt, P. (1979). Study guide to accompany Wonnacott-Wonnacott Economics. McGraw-Hill.

Cita Chicago (17th ed.)

Howitt, Peter. Study Guide to Accompany Wonnacott-Wonnacott Economics. Nueva York: McGraw-Hill, 1979.

Cita MLA (9th ed.)

Howitt, Peter. Study Guide to Accompany Wonnacott-Wonnacott Economics. McGraw-Hill, 1979.