TY - BOOK TI - Information sources on the agricultural implements and machinery industry T2 - UNIDO guides to information sources ; no. 8 U1 - 631.3 INF016.3384/7/681763091724 PY - 1982/// CY - New York PB - United Nations KW - Agricultural machinery industry N1 - Introd. and explanatory notes in English, French, Russian, and Spanish ER -