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