Citazione Stile APA (7a Edizione)
Bowden, E. V., & Bowden, J. H. (1981). Principles of economics: Theory. problems. policies (3rd ed.). South-western.
Citazione stile Chigago Style (17a edizione)
Bowden, Elbert V., e Judith H. Bowden. Principles of Economics: Theory. Problems. Policies. 3rd ed. Ohio: South-western, 1981.
Citatione MLA (9a ed.)
Bowden, Elbert V., e Judith H. Bowden. Principles of Economics: Theory. Problems. Policies. 3rd ed. South-western, 1981.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.