00971cam a2200313 4500 142888240 TxAuBib 20130816120000.0 110127s2010||||||||||||||||||||||||eng|u 2010284956 9780545247962 0545247969 (OCoLC)696814190 TxAuBib Martin, Justin McCory. Muscles / by Justin McCory Martin. New York : Scholastic, 2010. 16 p. : col. ill. ; 23 cm. Science sight word readers Science sight word readers "When you smile, muscles are hard at work. Learn more facts about your muscles in this book" (publisher). 20130816. Musculoskeletal system. Tissues. Science. Science sight word readers. Science sight word readers. TXGOR