Non-book materials in libraries : a practical guide / Richard Fothergill and Ian Butchart. Fothergill, Richard 1937- Butchart, Ian, 1946- Libraries Special collections Nonbook materials. Audio-visual library service. 025.17 19 FON Includes index. Bibliography: p. 293-296. London : C. Bingley ; 1984. 1984. 1984 Text 308 p. : eng