Cita APA (7a ed.)

Willer, D., Truesdell, W. H., & Kelly, W. D. (2017). APHR associate professional in human resources certification: Exam guide. McGraw-Hill Education.

Cita Chicago Style (17a ed.)

Willer, Dory, William H. Truesdell, y Willam D. Kelly. APHR Associate Professional in Human Resources Certification: Exam Guide. New York: McGraw-Hill Education, 2017.

Cita MLA (8a ed.)

Willer, Dory, et al. APHR Associate Professional in Human Resources Certification: Exam Guide. McGraw-Hill Education, 2017.