Iglesias-Leal, R. (2008). Contribution of the space sciences to sustainable development (third and last part). Universidad Autónoma de Tamaulipas.
Lua i Stíl Chicago (17ú heag.)Iglesias-Leal, Ramiro. Contribution of the Space Sciences to Sustainable Development (third and Last Part). Universidad Autónoma de Tamaulipas, 2008.
Lua MLA (8ú heag.)Iglesias-Leal, Ramiro. Contribution of the Space Sciences to Sustainable Development (third and Last Part). Universidad Autónoma de Tamaulipas, 2008.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.
