共 19 条
- [1] MANUAL OF AGRICULTURE AND FOOD SUPPLY IN DEVELOPING COUNTRIES .1. AGRICULTURE IN ECONOMIC DEVELOPMENT - FOOD SUPPLY RATIOS - GERMAN - BLANCKENBURG,PV AND CREMER,HD GEOGRAPHICAL JOURNAL, 1970, 136 (MAR): : 144 - 145
- [3] HANDBOOK OF AGRICULTURE AND NUTRITION IN DEVELOPING COUNTRIES - BLANCKENBURG,PV AND CREMER,HD AFRICA, 1969, 39 (03): : 311 - 312
- [4] HANDBOOK OF AGRICULTURE AND NUTRITION IN DEVELOPING COUNTRIES - GERMAN - BLANCKENBURG,P AND CREMER,HD MITTEILUNGEN DER OSTERREICHISCHEN GEOGRAPHISCHEN GESELLSCHAFT, 1974, 116 (1-2): : 257 - 258
- [5] HANDBOOK OF AGRICULTURE AND FOOD IN DEVELOPING COUNTRIES .2. CROP PRODUCTION AND LIVESTOCK PRODUCTION IN TROPICS AND SUBTROPICS - GERMAN - BLANCKENBURG,PV AND CREMER,HD GERMAN ECONOMIC REVIEW, 1972, 10 (02): : 116 - 118
- [6] HANDBOOK OF AGRICULTURE AND FOOD IN DEVELOPING COUNTRIES .2. CROP PRODUCTION AND LIVESTOCK PRODUCTION IN TROPICS AND SUBTROPICS - BLANCKENBURG,P AND CREMER,HD MODERN LAW AND SOCIETY, 1972, 5 (1-2): : 99 - 102
- [7] MANUAL OF AGRICULTURE AND NUTRITION IN DEVELOPING NATIONS .2. PLANT AND ANIMAL PRODUCTION IN TROPICS AND SUB-TROPICS - GERMAN - BLANCKENBURG,PV AND CREMER,HD GEOGRAPHICAL JOURNAL, 1973, 139 (JUN): : 355 - 356
- [8] HANDBOOK OF AGRICULTURE AND NUTRITION IN DEVELOPING COUNTRIES - GERMAN - VONBLACKENBURG,P, CREMER,HD MITTEILUNGEN DER OSTERREICHISCHEN GEOGRAPHISCHEN GESELLSCHAFT, 1968, 110 (2-3): : 341 - 342