It Works How and Why It Works How and Why $10.50 It Works How and Why quantity Add to cart Category: Books Description Description It Works How and Why Related products NA 6th Edition Basic Text (Softcover) $13.50 Add to cart Sponsorship $9.50 Add to cart NA 6th Edition Basic Text (Large Print) $13.50 Add to cart NA 6th Edition Basic Text (Hardcover) $13.50 Add to cart