共 50 条
- [1] SULFUR AVAILABILITY IN SOME SOILS OF PACIFIC WATERSHED OF COSTA-RICA AGRONOMIA COSTARRICENSE, 1978, 2 (02): : 137 - 145
- [3] SEISMICITY OF NORTHERN COSTA-RICA TRANSACTIONS-AMERICAN GEOPHYSICAL UNION, 1977, 58 (06): : 448 - 448
- [5] SEISMIC STUDIES IN NORTHERN COSTA-RICA TRANSACTIONS-AMERICAN GEOPHYSICAL UNION, 1976, 57 (04): : 290 - 290
- [7] MINERAL-COMPOSITION OF VOLCANIC SOILS IN THE TROPICAL REGION OF COSTA-RICA SOVIET SOIL SCIENCE, 1981, 13 (04): : 95 - 102
- [8] COPPER NUTRITION IN SOME COFFEE SOILS AND COFFEE PLANTS IN COSTA-RICA TURRIALBA, 1973, 23 (02): : 208 - 215