Virchow, D. Conservation of genetic resources : cost and implications for a sustainable utilization of plant genetic resources for food and agriculture /by D. Virchow - New York : Springer, 1999. - 243 p. ISBN: 3540653430 LCCN: 81981 Subjects--Topical Terms: Recursos genéticos--Conservación. Dewey Class. No.: 581.151 / V5