@prefix agrovoc: <http://aims.fao.org/aos/agrovoc/> .
@prefix dc: <http://purl.org/dc/terms/> .

agrovoc:xDef_e03750b0 dc:source <https://assets.publishing.service.gov.uk/media/57a08da2ed915d3cfd001b30/RLPSRbookchap12.pdf> .