Pérgolis, J. C., & Valenzuela G., J. (2008). The method in two urban investigations: Square of Bolívar station and imaginary and representations in the public transportation of passengers. Universidad Católica de Colombia.
استشهاد بنمط شيكاغوPérgolis, Juan Carlos, و Jairo Valenzuela G. The Method in Two Urban Investigations: Square of Bolívar Station and Imaginary and Representations in the Public Transportation of Passengers. Universidad Católica de Colombia, 2008.
MLA استشهادPérgolis, Juan Carlos, و Jairo Valenzuela G. The Method in Two Urban Investigations: Square of Bolívar Station and Imaginary and Representations in the Public Transportation of Passengers. Universidad Católica de Colombia, 2008.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.