Born-Digital or AnalogAnalogTranscriptTrees. Elm The coming of Dutch elm disaster. Post Empire Ap 20, 1969 p.11-13 Dutch Elm disease threatens Denver. RMN Ag 28, 1969 p.5 Post Ag 28, 1969 p.32 Dutch elm disease may prove costly to city. Post 5 30, 1969 p.1 Dutch elm disease threatens 85 per cent of Denver trees. RMN S 24, 1969 p.62 Procedures for halting Dutch elm disease. Post N.3, 1969 P-33CollectionWestern History Subject IndexRelated MaterialWestern History Subject Index AbbreviationsType of MaterialIndex CardLanguageeng
