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Operations of harvesters and threshers, Bicol

Operations of harvesters and threshers, Bicol
紙図書
by A.M. Valiente, Jr. ... [et al.]Special Studies Division, Planning Service, Office of the Secretary, Dept. of Agriculture1978
全国の図書館
  • 著者標目Valiente, A. M., Jr. Philippines. Dept. of Agricul...

A socio-economic study of farmers in selected towns of Cagayan

A socio-economic study of farmers in selected towns of Cagayan
紙図書
by A.M. Valiente, Jr. ... [et al.]Special Studies Division, Planning Service, Office of the Minister, Ministry of Agriculture1976
全国の図書館
  • 著者標目Valiente, A. M., Jr. Philippines. Ministry of Agri...

Socio-economic study of families in Licab, Nueva Ecija

Socio-economic study of families in Licab, Nueva Ecija
紙図書
by A.M. Valiente, Jr. ... [et al.]Special Studies Division, Planning Service, Office of the Minister, Ministry of Agriculture1976
全国の図書館
  • 著者標目Valiente, A. M., Jr. Philippines. Ministry of Agri...

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