Imperializmus jako nejvyšší stadium kapitalismu / Vladimír Iljič Lenin . Praha :  Svoboda , 1986 . 310 s . [1, of that borrowed 0]

U.S. Farmers’ preferences for agricultural and food policy in the 1990S / Harold D. Guither . Illinois :  University of Illinois , 1989 . 45 s . [1, of that borrowed 0]