TY - BOOK AU - Food and Agriculture Organization (Rome) TI - Audio-visual aids for co-operative education and training T2 - FAO Agricultural Development Paper; no.86 U1 - 37.035.22:371.68:63 L5 PY - 1967/// CY - Rome PB - FAO KW - C.N.Botham KW - Botham, C.N. KW - Agriculture-co-operative,Agricultural extension work,Audio visual education-instruments ER -