Klassifikation der Library of Congress [LCC] (USA)E756.C75

1850s(9) 1860s(8) 1870s(9) 1880s(15) 1890s(18) 1900s(78) 1910s(33) 19th century(190) 19th century American(5) 19th century history(23) 20th Century American History(26) adventure(36) American(150) American biography(42) American presidency(41) American Presidents(708) American West(37) autobiography(71) biographies(119) biography(4,560) camping(36) Childhood and youth(5) children(39) children's(55) conservation(135) correspondence(12) cousins(9) early 20th century(22) environment(64) environmentalism(18) fire(33) Gilded Age(27) government(74) heroes(21) historical(51) historical biography(7) historical fiction(53) history(3,011) History/Biography(10) hunting(22) journalism(87) juvenile(24) juvenile non-fiction(15) leaders(16) Leadership(30) letters(62) Library of America(44) literary nonfiction(9) military(25) modern(22) modern history(27) muckrakers(6) National Parks(101) naturalist(7) nature(97) New York(72) North America(26) Philippines(9) picture book(132) political biography(42) political science(29) politicians(26) politics(444) politics and government(39) presidency(42) presidential(28) progressive(8) Progressive Era(66) progressives(6) progressivism(27) Republican Party(13) social studies(32) teddy(29) teddy bears(16) U.S. History(141) United States History(31) us(76) US politics(34) usa(429) war(26) Washington DC(22) wilderness(17)