1833Ortega y Compañía,University of Texas at Austin: Harry Ransom Center
1831s.n.,University of Texas at Austin: Harry Ransom Center
1833Ortega,University of Texas at Austin: Harry Ransom Center
1830Ortega y Compañía,University of Texas at Austin: Harry Ransom Center
1832Ortega,University of Texas at Austin: Harry Ransom Center
