https://pictures.abebooks.com/isbn/9781891389788-us.jpg A Modern Approach to Quantum Mechanics@By: John S. Townsend@Publisher: @University Science Books@Print ISBN: 9781891389788, 1891389785@eText ISBN: 9781891389788@Edition: 2nd@Copyright year: 2012@Format: PDF@Available from $ 75.00 USD@SKU: 9781891389788R180 Download now: https://ouo.io/HBjzO8