Fitch, J. M. (1984). Earth and astronomical sciences research centres: A world directory of organizations and programmes. Longman ; Distributed exclusively in USA, its possessions, and Canada by Gale Research Co..
Lua i Stíl Chicago (17ú heag.)Fitch, Jennifer M. Earth and Astronomical Sciences Research Centres: A World Directory of Organizations and Programmes. Harlow, Essex, UK : Detroit, MI, USA: Longman ; Distributed exclusively in USA, its possessions, and Canada by Gale Research Co., 1984.
Lua MLA (8ú heag.)Fitch, Jennifer M. Earth and Astronomical Sciences Research Centres: A World Directory of Organizations and Programmes. Longman ; Distributed exclusively in USA, its possessions, and Canada by Gale Research Co., 1984.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.