9781410900128 | Not Applicable, February 15, 2003, cover price $9.99 |
About this edition: Life can be difficult up where the air is thin.
9781432941741 | Heinemann/Raintree, September 1, 2010, cover price $34.00 |
About this edition: Life can be difficult up where the air is thin.
9780739855119 | Heinemann/Raintree, April 1, 2003, cover price $34.29 |
About this edition: Discusses mountain and highland biomes and their impact on plants, animals, and people, and explores the effects that humans have had on the biomes.
9780613781817 | Turtleback Books, June 1, 2003, cover price $20.30