Agriculture  : marginal agricultural land and efficient afforestation : proceedings of a workshop in the CEC land and water use research programme, held in Gembloux (Belgium), 20 and 21 october 1988 
/ Commission of the European Communities ; ed. by L. Bock, J. Rondeux ; with the collaboration of P. G. Jarvis,..., R. J. Wilkins,... 
. - Brussels  Luxembourg  : ECSC : EEC : EAEC, 1990
. - 207 p.  ; 23 cm. 
 - Agriculture .
<br/><br/><label>ISBN: </label>978928261189 9282611892 
<br/><br/><label>Universal Decimal Class. No.: </label>634.0 11