Gago, c. b. J. M., & Carvalho, t. M. J. S. d. (1991). Science in Portugal. Europália - Portugal.
Lua i Stíl Chicago (17ú heag.)Gago, coord. by José Mariano, agus translation Maria João Simões de Carvalho. Science in Portugal. Europália - Portugal, 1991.
Lua MLA (8ú heag.)Gago, coord. by José Mariano, agus translation Maria João Simões de Carvalho. Science in Portugal. Europália - Portugal, 1991.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.