By properly citing the sources you use in your research projects you are both identifying the resources that you used to complete your work and you are formally acknowledging the authors or creators of those resources. This allows others to find what you have found and to verify your research.
APA citation style
CU Library Reference locations include Africana, Hotel, Management, Olin, and Uris Libraries at call number:
BF 76.7 .P83x 2001x. Also in ILR and Mann Reference at BF 76.7 .A51 2001.