Crop genetic resources - the conservation of difficult material: Proceedings of an international workshop, 8-11 September 1980, University of Reading, U.K.
Directory of European institutions holding crop genetic resources collections (Fourth Edition): Vol. 1. Holdings
Establishment and operation of a pilot in vitro active genebank: Report of a CIAT-IBPGR collaborative project using cassava (Manihot esculenta Crantz) as a model