Manhire, Vanessa, ed. (2019). "United Nations Handbook 2019–2020"(PDF). United Nations Handbook:: An Annual Guide for Those Working within the United Nations (57th ed.). Wellington: Ministry of Foreign Affairs and Trade of New Zealand: 56–58. ISSN0110-1951.
Manhire, Vanessa, ed. (2019). "United Nations Handbook 2019–2020"(PDF). United Nations Handbook:: An Annual Guide for Those Working within the United Nations (57th ed.). Wellington: Ministry of Foreign Affairs and Trade of New Zealand: 56–58. ISSN0110-1951.