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1by Mata-Alvarez, J. 1423211773834, Conferencia Internacional de Mecanizacion Agraria spa 10-11 Apr 198910-13 Apr 1989 21 Zaragoza (Spain) 20389, Cecchi, F., International Conference on Agricultural Mechanization eng 10-11 Apr 198910-13 Apr 1989 21 Zaragoza (Spain) 12893, Seminario de FAO-CNRE: Tecnologias de Produccion de Biogas spa 10-11 Apr 198910-13 Apr 1989 21 Zaragoza (Spain), Workshop of the FAO-CNRE: Biogas Production Technologies eng 10-11 Apr 198910-13 Apr 1989 21 Zaragoza (Spain)
Published 1989Texto bibliotecaFAO IT