Why should you cite your sources?
Citing your sources shows your reader the pathway you used to build your argument. It acknowledges that you consulted other sources to draw your conclusions and demonstrates that you know how to do research. Not citing your sources is considered stealing aother person's ideas, research and work.
What should you cite?
How should you cite?
The field of anthropology has it's own citation guidelines called AAA Style which is based on the Chicago Manual of Style but APA or Chicago Style can be used as well. Ask your instructor what citation style they prefer, or if they have specific guidelines for citation.