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	1.	El proceso de la investigacion cientifica / Raul Rojas Soriano by Rojas Soriano, Raul Edition: 4a ed Material type: Text Publication details: Mexico : Trillas , 1998 , c1990 Availability: Items available for loan: Biblioteca Pública de San Miguel de Allende, A.C. (1)Call number: 001.42 ROJ. Place hold Add to cart (remove)
	2.	Metodos para la investigacion social : una proposición dialéctica / Raul Rojas Soriano by Rojas Soriano, Raul Material type: Text Publication details: Mexico : Plaza & Valdes , c1987 Availability: Not available: Biblioteca Pública de San Miguel de Allende, A.C.: Withdrawn (1). Add to cart (remove)
	3.	Guia para realizar investigaciones sociales / Raul Rojas Soriano by Rojas Soriano, Raul Edition: 14a ed Material type: Text; Format: print ; Literary form: Not fiction Publication details: Mexico : Plaza y Valdes , 1994 Availability: Not available: Biblioteca Pública de San Miguel de Allende, A.C.: Withdrawn (1). Add to cart (remove)

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