RT null T1 Guidance on Citations, Referencing, and Style Guide for UN Environment Publications A1 United Nations Environment Programme, K1 reference material PB United Nations Environment Programme YR 2017 FD 2017 LK https://wedocs.unep.org/handle/20.500.11822/17644 UL https://wedocs.unep.org/handle/20.500.11822/17644 NO Guidance on Citations, Referencing, and Style Guide for UN Environment Publications DS UN Environment Document Repository RD Sep 17, 2026