TY - BOOK AU - Leggat,Robert AU - Bateman,Jacqueline TI - Showing off: display techniques for teachers T2 - U1 - 371.3356/L513s PY - 1970///, rev. and repr. 1974 CY - London PB - National Committee for Audio-Visual Aids in Education KW - Bulletin boards KW - Study and teaching N1 - Addresses of firms and bibliography at the end ER -