共 50 条
- [21] NEW DIRECTIONS FOR AGRICULTURE AND AGRICULTURAL-RESEARCH - NEGLECTED DIMENSIONS AND EMERGING ALTERNATIVES - DAHLBERG,KA PROFESSIONAL GEOGRAPHER, 1987, 39 (03): : 369 - 369
- [22] NEW DIRECTIONS FOR AGRICULTURE AND AGRICULTURAL-RESEARCH - NEGLECTED DIMENSIONS AND EMERGING ISSUES - DAHLBERG,KA ANNALS OF REGIONAL SCIENCE, 1988, 22 (01): : 113 - 116
- [29] AGRICULTURAL-RESEARCH AND EXTENSION PROGRAMS - BOYCE,JK AND EVENSON,RE SCIENTIA, 1977, 112 (1-4): : 220 - 221