(1980). Light for low vision: Proceedings of the symposium held at University College, London on 4th April, 1978 / sponsored jointly by the Chartered Institution of building Services Lighting Division and the Partially Sighted Society ; [R. Greenhalgh, honorary editor].
Чикаго-гийн эшлэл (17 дахь хэвлэлт)Light for Low Vision: Proceedings of the Symposium Held at University College, London on 4th April, 1978 / Sponsored Jointly by the Chartered Institution of Building Services Lighting Division and the Partially Sighted Society ; [R. Greenhalgh, Honorary Editor]. 1980.
MLA -ийн эшлэл (9 дэх хэвлэлт)Light for Low Vision: Proceedings of the Symposium Held at University College, London on 4th April, 1978 / Sponsored Jointly by the Chartered Institution of Building Services Lighting Division and the Partially Sighted Society ; [R. Greenhalgh, Honorary Editor]. 1980.