Warnock, C. G., & Bell, W. G. M. (1960). High-pressure Salesmanship.
Citação norma ChicagoWarnock, C. G., and W. G. M. Bell. High-pressure Salesmanship. 1960.
MLA CitationWarnock, C. G., and W. G. M. Bell. High-pressure Salesmanship. 1960.
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