Most academic libraries in North America, including this one, use the Library of Congress (LC) Classification System to organize materials. LC divides all knowledge into 21 classes.
Works about Archaeology of a science are identified by the class C and sub-class CC. Works on Ancient Egypt are identified by the class D and the sub-class DT. Materials are further organized by the number range that follows the subclass letters.
Click this link to see the Library of Congress Classification by letter and by number ranges.
Below are listed the respective ranges:
BL Religions. Mythology, Rationalism
DT - History of Africa
P - Languages and Literature