lohr, v. (1974). trends of development and some topical problems in czechoslovak agriculture. the institute of national planning.
Чикаго стиль цитування (17-те видання)lohr, v. Trends of Development and Some Topical Problems in Czechoslovak Agriculture. cairo: the institute of national planning, 1974.
Стиль цитування MLA (9-ме видання)lohr, v. Trends of Development and Some Topical Problems in Czechoslovak Agriculture. the institute of national planning, 1974.