Planetwalker
Subtitle: 22 Years of Walking. 17 Years of Silence.
Publisher: National Geographic
Published: April 21, 2009
Format: Paperback
Number of pages: 288
ISBN-13: 9781426204050
Subjects: Biographies & Memoirs -- Memoirs; Nonfiction -- Social Sciences -- Sociology; Outdoors & Nature -- Conservation; Outdoors & Nature -- Environment -- Conservation; Outdoors & Nature -- Hiking & Camping -- Walking; Professional & Technical -- Engineering -- Civil -- Environmental