University of Phoenix School of Business. «Nearly three-fourths of US workers in their 30s want a career change,» University of Phoenix News release, July 29, 2015, http://www.phoenix.edu/news/releases/2015/07/uopx-survey-reveals-three-fourths-us-workers-intheir-thirties-want-career-change.html; http://www.bls.gov/news.release/pdf/nlsoy.pdf.
