public int callAPIs(string searchTerm, int searchType)
        {
            CampusBooksAPI campusBooks = new CampusBooksAPI();
            int rc = campusBooks.search(searchTerm, searchType);

            return rc;
        }
        public bookInfo selectNodeAt(int index)
        {
            bookInfo selectedNode = getNodeAt(index);
            bookInfo previousNode = getNodeAt(index - 1);

            //Move selected node to the front of the list
            previousNode.next = selectedNode.next;
            selectedNode.next = head.next;
            head.next = selectedNode;

            //Call API to get prices for node
            CampusBooksAPI campusBooks = new CampusBooksAPI();
            campusBooks.callCampusBooksAPI(selectedNode.ISBN13);

            return selectedNode;
        }