audiovisual materials
preferred label: مواد دیداری شنیداری @fa
type: Concept
narrower: gramophone records

information recording
preferred label: ضبط اطلاعات @fa
type: Concept
related: gramophone records

gramophone records
alternative label: GRABACIONES FONOGRAFICAS
related: machine readable records
related: information recording
broader: audiovisual materials
preferred label: صفحه‌های گرامافون @fa
type: Concept

machine readable records
preferred label: مدارک ماشین‌خوان @fa
type: Concept
related: gramophone records