Portugal : agricultural sector survey : a near-term action program for agriculture : volume I : report nº 5007-PO
Portugal : agricultural sector survey : a near-term action program for agriculture : volume II : statistical appendix : report nº 5007-PO
Portugal : agricultural sector survey : a near-term action program for agriculture : volume III : report nº 5007-PO
Portugal : agricultural sector survey : a near-term action program for agriculture : volume IV : report nº 5007-PO