TY - GEN AU - United Nations Environment Programme AU - American Society of Heating, Refrigerating and Air-Conditioning Engineers PY - 2017 UR - https://wedocs.unep.org/handle/20.500.11822/26771 LA - English KW - ozone KW - ozone-depleting substance KW - ozone layer KW - refrigeration TI - Refrigerants Literacy - e-Learning M3 - Communication or other resource ER -