Não informado. (2000). Global Environmental Research. Association of International Research Initiatives for Environmental Studies.
Citação do estilo Chicago (17ª ed.)Não informado. Global Environmental Research. Tokyo: Association of International Research Initiatives for Environmental Studies, 2000.
Citação MLA (8ª ed.)Não informado. Global Environmental Research. Association of International Research Initiatives for Environmental Studies, 2000.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.