TY - BOOK AU - Martin,Justin McCory TI - Muscles T2 - Science sight word readers AV - QP321 .M333 2010 PY - 2010/// CY - New York PB - Scholastic KW - Musculoskeletal system KW - Tissues N2 - "When you smile, muscles are hard at work. Learn more facts about your muscles in this book" (publisher) ER -