Varela-López, L. J. (2008). University students with hearts of children. Universidad Autónoma de Tamaulipas.
Lua i Stíl Chicago (17ú heag.)Varela-López, Luis Jesús. University Students with Hearts of Children. Universidad Autónoma de Tamaulipas, 2008.
Lua MLA (8ú heag.)Varela-López, Luis Jesús. University Students with Hearts of Children. Universidad Autónoma de Tamaulipas, 2008.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.
