international agricultural research and the private sector, proceedings of a conference held april 17-21, 1988 in Rosslyn, VA Cohen, Joel I. creator text us Washington, D.C Agency for International Development 1988 monographic eng xii, 480 p. : ilus., gráfs. / by Joel I. Cohen Agricultura Investigación Biotecnología Cultivo de tejidos Congresos 630.72 C66 96854 091009 20220329143442.0