(1980). BUSINESS ECONOMICS: Made Simple. [s.n].
Cita Chicago (17th ed.)BUSINESS ECONOMICS: Made Simple. [s.i]: [s.n], 1980.
Cita MLA (9th ed.)BUSINESS ECONOMICS: Made Simple. [s.n], 1980.
Atenció: Aquestes cites poden no estar 100% correctes.
(1980). BUSINESS ECONOMICS: Made Simple. [s.n].
Cita Chicago (17th ed.)BUSINESS ECONOMICS: Made Simple. [s.i]: [s.n], 1980.
Cita MLA (9th ed.)BUSINESS ECONOMICS: Made Simple. [s.n], 1980.