APA (7th ed.) Citation

Gaspar, E. (19). Un problema. Pascual Aguilar.

Chicago Style (17th ed.) Citation

Gaspar, Enrique. Un Problema. Valencia: Pascual Aguilar, 19.

MLA (9th ed.) Citation

Gaspar, Enrique. Un Problema. Pascual Aguilar, 19.

Warning: These citations may not always be 100% accurate.