Whitney, F. L. (1976). Elementos de investigación (4a. ed.). Omega.
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Chicago Style (17th ed.) Citation
Whitney, Frederick Lamson. Elementos De Investigación. 4a. ed. Barcelona: Omega, 1976.
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MLA (9th ed.) Citation
Whitney, Frederick Lamson. Elementos De Investigación. 4a. ed. Omega, 1976.
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