Mass Market Paperback
details (USA).(see also: Audible Audiobook · Audio CD · MP3 CD)
details (United Kingdom).(see also: Audible Audiobook · CD-ROM · Audio CD)
details (Germany).(see also: CD-ROM · Audio CD · MP3 CD)
details (Canada).(see also: MP3 CD · MP3 CD · Audible Audiobook)
ISBN: 978-1-4262-0755-6
ISBN-10: 1-4262-0755-7
National Geographic · 2010