Unesco, United Nations Environment Programme, & Unesco. Education Sector. Connect: UNESCO-UNEP environmental education newsletter. [Unesco].
Citazione stile Chigago Style (17a edizione)Unesco, United Nations Environment Programme, e Unesco. Education Sector. Connect: UNESCO-UNEP Environmental Education Newsletter. [Paris]: [Unesco].
Citatione MLA (9a ed.)Unesco, et al. Connect: UNESCO-UNEP Environmental Education Newsletter. [Unesco].
Attenzione: Queste citazioni potrebbero non essere precise al 100%.