Klassifikation enligt LCTL1-4050

1960s(291) accidents(158) adventure(628) airplane(321) airplanes(1,857) airport(142) alien abduction(301) aliens(440) auto(116) autobiography(1,217) automobiles(556) aviation(6,450) bikes(98) biographies(577) biography(8,302) bombers(106) cars(1,414) Challenger(72) children(627) children's(952) construction(364) cycling(510) disasters(155) driving(146) engineering(908) exploration(513) Extraterrestrials(437) flight(1,440) flying(1,067) history(8,851) history of science(213) how-to(291) informational(329) inventions(209) inventors(363) juvenile(334) juvenile non-fiction(170) Lindbergh(183) machines(277) Mars(257) military(547) military history(394) moon(1,479) motorcycles(299) nasa(2,742) outer space(407) paranormal(580) photographs(218) photography(393) picture book(1,559) pilot(244) pilots(356) plane crash(123) planes(611) planets(162) reference(1,374) repair(139) rockets(594) science(6,263) science and technology(180) social studies(277) solar system(262) space colonization(97) space exploration(2,317) space flight(1,295) space station(73) space stations(66) spacecraft(170) survival(407) travel(598) trucks(1,011) usa(838) vehicles(757) women(595)