Clark, J. (1985). Study Guide to Accompany Gwartney, Stroup, and Clark's Essentials of Economics (Second Edition). ELSEVIER.
Citazione stile Chigago Style (17a edizione)Clark, J.R. Study Guide to Accompany Gwartney, Stroup, and Clark's Essentials of Economics (Second Edition). ELSEVIER, 1985.
Citatione MLA (8a ed.)Clark, J.R. Study Guide to Accompany Gwartney, Stroup, and Clark's Essentials of Economics (Second Edition). ELSEVIER, 1985.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.