The U.S. National Plant Germplasm System / Committee on Managing Global Genetic Resources: Agricultural Imperatives. - Washington, D.C. : National Academy Press, 1991. - xiv, 171 p. : ill. ; - Managing global genetic resources . ISBN: 0309043905 Subjects--Topical Terms: Crops--Germplasm resourcesGermplasm resources, Plant--Management. LC Class. No.: SB123.3 / .U17 1991