lohr, v. (1974). trends of development and some topical problems in czechoslovak agriculture. the institute of national planning.
Chicago-čujuhus (17. p.)lohr, v. Trends of Development and Some Topical Problems in Czechoslovak Agriculture. cairo: the institute of national planning, 1974.
MLA-čujuhus (9. p.)lohr, v. Trends of Development and Some Topical Problems in Czechoslovak Agriculture. the institute of national planning, 1974.