Billingsley, R. S. (1996). Merck & Company: A comprehensive equity valuation analysis / Randall S. Billingsley. Associaltion for Investment Management and Research.
Chicago Style (17. basım) AtıfBillingsley, Randall S. Merck & Company: A Comprehensive Equity Valuation Analysis / Randall S. Billingsley. Virginia: Associaltion for Investment Management and Research, 1996.
MLA (9th ed.) AtıfBillingsley, Randall S. Merck & Company: A Comprehensive Equity Valuation Analysis / Randall S. Billingsley. Associaltion for Investment Management and Research, 1996.
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