Research in agricultural economics ; institutes and main fields of research - (Paris) : OCDE, (1964) - 127 p. - Documentation in food and agriculture ; 63 . - Documentation in food and agriculture ; 63 . LCCN: 36115 Subjects--Topical Terms: Agricultura--Aspectos economicos--Investigacion.Agricultura--Aspectos economicos--Sociedades.Agricultura--Sociedades. Dewey Class. No.: 338.106 / O73