Overview of materials location. The letter corresponds to the shelf, and the number to the level. Click to see full image.Printable, easy to read 'Cheat Sheet'. Click to see full image.The following table lists the four bookcases in each of the two rooms and what shelf each item is on in its respective bookcase. The bookcases are ordered going counterclockwise from the southeast, an illustration of which can be found in the image to the right.
For example, a Blight Crystal can be found in the left room in the western bookcase on the second shelf from the bottom.
Don't worry about the time limit on the items, as long as they were looted, they count.
The daily quest version does care about the time, so move quickly.
The last component for the daily quest is a "single" item, one that is only present one time. All other components required for the daily quests are present multiple times.