The great cycle predicting and profiting from crowd behavior, the kondratieff wave, and long-term cycles
| Autor principal: | |
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| Format: | Llibre |
| Idioma: | English |
| Publicat: |
Chicago, Ill.
Probus Pub. Co.
c1993.
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| Edició: | Rev. ed. |
| Matèries: |