Klassifikation der Library of Congress [LCC] (USA)QK525.85

agriculture(18) art(34) biology(832) botany(1,156) Britain(79) cabin(14) California(31) Canada(57) conservation(14) cookbook(40) cooking(83) cultivation(15) cultural history(13) dictionary(21) drugs(38) ecology(258) environment(46) Europe(53) European(26) food(168) food history(11) forest(11) garden(44) gardening(175) gardens(11) gastronomy(9) Great Britain(31) guide(239) guidebook(71) hallucinogens(18) handbook(13) herbalism(7) history(37) homesteading(20) horticulture(37) how-to(19) informational(14) intellectual(5) life science(25) Life Sciences(11) marine(18) medicine(17) Michigan(16) Midwestern(11) natural science(35) natural world(10) naturalist(5) nature(1,169) nature writing(9) North America(135) Northwest(6) nutrition(11) ocean(15) outdoors(38) photographs(21) photography(27) picture book(69) pnw(9) poison(16) pollution(7) popular science(15) psychedelics(11) reference(470) science(907) science and technology(7) scientific(6) self-sufficiency(18) sustainability(22) symbiosis(9) toxicity(5) trees(16) usa(44) Washington(20) wildlife(19)