Bowden, E. V., & Bowden, J. H. (1981). Principles of economics: Theory. problems. policies (3rd ed.). South-western.
Chicago-čujuhus (17. p.)Bowden, Elbert V., juo Judith H. Bowden. Principles of Economics: Theory. Problems. Policies. 3rd ed. Ohio: South-western, 1981.
MLA-čujuhus (9. p.)Bowden, Elbert V., juo Judith H. Bowden. Principles of Economics: Theory. Problems. Policies. 3rd ed. South-western, 1981.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.