Alexander von Humboldt

37 books

296 pages 2009

nonfiction science challenging informative slow-paced

400 pages 1807

nonfiction history science travel adventurous informative reflective slow-paced

519 pages hardcover

nonfiction history science informative medium-paced

840 pages 2018

nonfiction essays science challenging informative reflective slow-paced

344 pages 1808

nonfiction nature philosophy science informative slow-paced

466 pages paperback

nonfiction history informative reflective slow-paced

462 pages digital 1862

462 pages digital

367 pages paperback 1997

nature challenging informative medium-paced

508 pages paperback 2012