Селскостопанска академия
| УДК | Значение |
|---|---|
| 631.4 | Почвознание. Почвени изследвания |
| Година на издаване | Том | ||
|---|---|---|---|
| 1993 | 1-6 | 156 | |
| 1993 | 1-6 | 155 | |
| 1991 | 1-6 | 151 | |
| 1991 | 1-6 | 152 | |
| 1990 | 1-6 | 150 | |
| 1990 | 1-6 | 149 | |
| 1989 | 1-6 | 147 | |
| 1989 | 1-6 | 148 | |
| 1988 | 1-6 | 145 | |
| 1987 | 1-6 | 143 | |
| 1987 | 1-6 | 144 | |
| 1986 | 1-6 | 142 | |
| 1986 | 1-6 | 141 | |
| 1985 | 1-6 | 139 | |
| 1985 | 1-6 | 140 | |
| 1984 | 1-6 | 138 | |
| 1984 | 1-6 | 137 | |
| 1983 | 1-6 | 135 | |
| 1983 | 1-6 | 136 | |
| 1982 | 1-6 | 133 | |
| 1982 | 1-6 | 134 | |
| 1981 | 1-6 | 131 | |
| 1981 | 1-6 | 132 | |
| 1980 | 1-6 л. 4 | 129 | |
| 1980 | 1-6 | 130 | |
| 1978 | 1-6 л. 3, | 125 | |
| 1977 | 1-6 | 123 | |
| 1977 | 1-6 | 124 | |
| 1976 | 1-6 | 121 | |
| 1976 | 1-6 | 122 | |
| 1975 | 1-6 | 119 | |
| 1975 | 1-6 | 120 | |
| 1974 | 1-6 л. 5 | 118 | |
| 1974 | 1-6 л. 3, | 117 | |
| 1973 | 1-6 | 115 | |
| 1973 | 1-6 | 116 | |
| 1972 | 1-6 | 114 | |
| 1972 | 1-6 | 113 | |
| 1971 | 1-6 | 111 | |
| 1971 | 1-6 | 112 | |
| 1970 | 1-6 | 110 | |
| 1970 | 1-6 | 109 | |
| 1969 | 1-6 | 107 | |
| 1969 | 1-6 | 108 | |
| 1968 | 1-6 | 105 | |
| 1968 | 1-6 | 106 | |
| 1967 | 1-6 | 103 | |
| 1967 | 1-6 | 104 | |
| 1966 | 1-6 | 101 | |
| 1966 | 1-6 | 102 | |
| 1965 | 1-6 | 99 | |
| 1965 | 1-6 | 100 | |
| 1964 | 1-6 | 97 | |
| 1964 | 1-6 | 98 |
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