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		No cover image available Biología moderna / por Raúl N. Ondarza. by Ondarza, Raúl N Series: Nueva ciencia-nueva técnica Material type: Text; Format: print ; Literary form: Not fiction Publication details: México : Siglo XXI, 1968 Availability: Items available for loan: Bib. Gregorio Torres Quintero (1)Collection, call number: Colección General QH315 O5.2. Place hold
		Ecología : el hombre y su ambiente / Raúl N. Ondarza. by Ondarza, Raúl N Material type: Text; Literary form: Not fiction Publication details: México : Trillas, 1993 Availability: Items available for loan: Bib. Gregorio Torres Quintero (2)Collection, call number: Colección General QH541.15 E5 O5.4, ... Place hold
		El impacto del hombre sobre la tierra / Raúl N. Ondarza. by Ondarza, Raúl N Material type: Text; Format: print ; Literary form: Not fiction Publication details: México : Trillas, 1993 Availability: Items available for loan: Bib. Gregorio Torres Quintero (1)Collection, call number: Colección General GF75 055 1993. Place hold
		El impacto del hombre sobre la tierra / Raúl N. Ondarza. by Ondarza, Raúl N Edition: 5a ed. Material type: Text; Literary form: Not fiction Publication details: México : Trillas, 2005 Availability: Items available for loan: Bib. Gregorio Torres Quintero (1)Collection, call number: Colección General GF75 O5.5 2005. Place hold
		Trasplante y movilización de genes = Transplant and mobilization of genes / ed. Raúl N. Ondarza. by Ondarza, Raúl N [ed.] Material type: Text; Literary form: Not fiction Publication details: México : CONACYT, 1981 Availability: Items available for loan: Bib. Gregorio Torres Quintero (1)Collection, call number: Colección General QH366.2 T7.3. Place hold