Clasificación de la Biblioteca del CongresoHD1401-2210

18th century(35) 1930s(28) 19th century(94) Africa(96) agribusiness(24) agriculture(971) American West(132) anthropology(110) Argentina(26) biography(86) Bolivia(11) California(203) Canada(32) capitalism(53) colonialism(22) communism(65) community(26) conservation(62) culture(80) current events(27) development(90) early modern europe(12) ecology(176) Economic aspects(9) economic development(25) economic history(77) economics(330) economy(66) England(73) environment(407) environmental(22) environmental studies(13) environmentalism(48) essay(37) ethnography(24) Europe(71) European History(40) famine(20) farm(51) farm workers(42) farmers(32) food(131) food politics(24) food production(9) geography(57) globalization(58) government(49) Great Depression(27) Highlands(16) history(1,341) homesteading(20) immigration(33) India(77) international development(9) journal(36) labor(115) labor history(22) labor studies(10) laborers(9) land(45) land use(15) Latin America(72) Marxism(37) medieval(60) Mexico(70) Middle Ages(60) Midwest(15) migrant(8) Migrant agricultural laborers(10) migrant farm workers(9) migrant labor(13) natural resources(48) nature(99) New Deal(14) New Mexico(31) peasants(81) photography(98) planning(17) plantations(13) policy(52) political economy(36) political science(59) politics(333) poverty(55) production(19) resources(16) revolution(28) Rio Grande(8) rivers(21) rural(83) rural life(24) Russia(96) science(102) Scotland(91) slavery(39) social history(89) social justice(30) socialism(26) society(39) sociology(129) Stalin(30) sustainability(67) the state(10) The West(24) trade(22) usa(142) water shortage(7) workers(20)