Landwirtschaftliches Zentralblatt.

v.1 1955/56; v.2 1957; v.3 1958; v.4 1959; v.5 no.1-4 1960; v.5 no.5-9 1960; v.6 no.1-6 1961; v.6 no.7-12 1961; v.7 no.1-6 1962; v.7 no.7-12 1962; v.8 no.1-6 1963; v.8 no.7-12 1963; v.9 no.1-6 1964; v.9 no.7-12 1964; v.10 no.1-6 1965; v.10 no.7-12 1965; v.11 no.1-6 1966; v.11 no.7-12 1966; v.12 no.1-6 1967; v.12 no.7-12 1967; v.13 no.1-6 1968; v.13 no.7-12 1968; v.14 no.1-6 1969; v.14 no.7-12 1969; v.15 no.1-6 1970; v.15 no.7-12 1970; v.16 no.1-6 1971; v.16 no.7-12 1971; v.17 no.1-4 1972; v.17 no.5-8 1972; v.17 no.9-12 1972; v.20 no.1-4 1975; v.20 no.5-8 1975; v.20 no.9-12 1975; DAS SYSTEM; v.10 Index 1965; v.5 Index 1960; v.6 Index 1961; v.4 Index 1959; v.11 Index 1966; v.9 Index 1964; v.8 Index 1963; v.7 Index 1962; v.14 Index 1969; v.13 Index 1968; v.12 Index 1967; v.15 Index 1970