Available at https://www.xlibris.com/en/bookstore/bookdetails/725698-the-greatness-of-gratitude
https://www.amazon.com/Greatness-Gratitude-J-B-Powell/dp/1796015024/ref=sr_1_1?
https://www.barnesandnoble.com/w/the-greatness-of-gratitude-j-b-powell/1133120326?ean=9781796015027