lohr, v. (1974). trends of development and some topical problems in czechoslovak agriculture. the institute of national planning.
Παραπομπή σε μορφή Chicago (17η εκδ.)lohr, v. Trends of Development and Some Topical Problems in Czechoslovak Agriculture. cairo: the institute of national planning, 1974.
Παραπομπή σε μορφή MLA (9th εκδ.)lohr, v. Trends of Development and Some Topical Problems in Czechoslovak Agriculture. the institute of national planning, 1974.
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