Clasificación de la Biblioteca del CongresoHE6184.R3

1860s(9) 19th century(112) airplanes(6) American(14) American West(60) antebellum(5) antiques(5) Arkansas(9) art(39) art deco(7) aviation(34) biography(60) Britain(29) British history(9) business(10) California(17) Canada(48) career(11) careers(26) children(21) children's(31) collectibles(22) colonies(6) communication(32) community(44) computers(11) computing(11) correspondence(5) cowboys(9) cultural history(13) design(14) dictionaries(8) dictionary(10) flight(10) genealogy(13) General Reference(9) geography(41) Germany(15) government(9) Great Britain(62) Hawaii(14) historical fiction(19) history(756) horses(20) how-to(7) iconography(5) India(22) informational(19) internet(15) Jamaica(5) jobs(52) juvenile non-fiction(10) letter(5) letters(33) mail(170) maps(11) networking(5) North America(12) occupations(29) photographs(9) photography(15) picture book(61) politics(13) post office(178) postage(15) postal(27) postal system(5) Prince Edward Island(5) reference(174) social history(14) social studies(44) stamps(633) study guide(5) Texas(8) The West(11) trains(8) U.S. History(37) uk(24) United States History(10) us(15) usa(185) values(5) western(25) wild west(20) world(111)