TY - BOOK AU - Hillman, Ben. TI - How strong is it?: a mighty book all about strength SN - 9780439918664 AV - TA 405 .H55 2008 PY - 2008/// CY - New York PB - Scholastic KW - Mechanics KW - Muscles KW - Strength of materials N1 - Includes index; GE ER -