TY - BOOK AU - Waring,Rob ED - National Geographic Society (U.S.) TI - Wind power T2 - Footprint reading library. Intermediate B1 SN - 9781424011834 (pbk.) AV - Graded Reader Blue PY - 2009/// CY - [London] PB - Heinle/Cengage Learning KW - Wind power KW - Readers (Adult) N1 - At head of title: National Geographic ER -