linkedin.com (Firm), Ludwig, D., & B. Smith, C. (2017). Excel for Sales Professionals. linkedin.com.
Cita Chicago Style (17a ed.)linkedin.com (Firm), Dave Ludwig, y Chris B. Smith. Excel for Sales Professionals. Carpenteria, CA: linkedin.com, 2017.
Cita MLA (8a ed.)linkedin.com (Firm), et al. Excel for Sales Professionals. linkedin.com, 2017.
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