Dyfyniad APA

Pérgolis, J. C., & Rodríguez Ibarra, C. I. (2013). The spirit of time in cities and their books. Universidad Católica de Colombia.

Dyfyniad Arddull Chicago

Pérgolis, Juan Carlos, and Clara Inés Rodríguez Ibarra. The Spirit of Time in Cities and Their Books. Universidad Católica de Colombia, 2013.

Dyfyniad MLA

Pérgolis, Juan Carlos, and Clara Inés Rodríguez Ibarra. The Spirit of Time in Cities and Their Books. Universidad Católica de Colombia, 2013.

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