Cita APA (7a ed.)

O'Brien, D. P. (1997). The foundations of business cycle theory. Edward Elgar.

Cita Chicago Style (17a ed.)

O'Brien, D. P. The Foundations of Business Cycle Theory. Aldershot: Edward Elgar, 1997.

Cita MLA (9a ed.)

O'Brien, D. P. The Foundations of Business Cycle Theory. Edward Elgar, 1997.