Advances in extrusion technology : aquaculture/animal feeds and foods : proceedings of the International Symposium on Animal and Aquaculture Feedstuffs by Extrusion Technology and the International Seminar on Advanced Extrusion Technology in Food Applications, March 9-14, 1998, Áquas de Lindóia, São Paulo, Brazil / edited by Yoon Kil Chang, Shaw S. Wang. aquaculture/animal feeds and foods : proceedings of the International Symposium on Animal and Aquaculture Feedstuffs by Extrusion Technology and the International Seminar on Advanced Extrusion Technology in Food Applications, March 9-14, 1998, Áquas de Lindóia, São Paulo, Brazil /